./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU --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 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:11:12,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:11:12,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:11:12,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:11:12,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:11:12,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:11:12,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:11:12,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:11:12,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:11:12,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:11:12,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:11:12,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:11:12,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:11:12,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:11:12,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:11:12,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:11:12,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:11:12,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:11:12,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:11:12,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:11:12,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:11:12,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:11:12,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:11:12,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:11:12,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:11:12,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:11:12,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:11:12,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:11:12,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:11:12,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:11:12,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:11:12,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:11:12,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:11:12,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:11:12,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:11:12,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:11:12,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:11:12,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:11:12,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:11:12,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:11:12,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:11:12,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:11:12,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:11:12,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:11:12,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:11:12,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:11:12,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:11:12,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:11:12,414 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:11:12,414 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:11:12,414 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:11:12,414 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:11:12,415 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:11:12,416 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:11:12,416 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:11:12,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:11:12,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:11:12,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:11:12,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:11:12,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:11:12,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:11:12,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:11:12,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:11:12,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:11:12,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:11:12,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:11:12,419 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:11:12,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:11:12,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:11:12,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:11:12,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:11:12,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:11:12,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:11:12,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:11:12,424 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:11:12,424 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_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2021-11-02 22:11:12,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:11:12,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:11:12,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:11:12,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:11:12,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:11:12,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-11-02 22:11:12,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/data/49cf0e220/9995001e62c344468a3f3a57b941a2f0/FLAG504c0e103 [2021-11-02 22:11:13,290 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:11:13,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-11-02 22:11:13,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/data/49cf0e220/9995001e62c344468a3f3a57b941a2f0/FLAG504c0e103 [2021-11-02 22:11:13,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/data/49cf0e220/9995001e62c344468a3f3a57b941a2f0 [2021-11-02 22:11:13,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:11:13,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:11:13,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:11:13,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:11:13,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:11:13,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:11:13" (1/1) ... [2021-11-02 22:11:13,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50640594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:13, skipping insertion in model container [2021-11-02 22:11:13,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:11:13" (1/1) ... [2021-11-02 22:11:13,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:11:13,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:11:13,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-11-02 22:11:13,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:11:13,987 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:11:14,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-11-02 22:11:14,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:11:14,073 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:11:14,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14 WrapperNode [2021-11-02 22:11:14,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:11:14,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:11:14,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:11:14,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:11:14,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:11:14,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:11:14,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:11:14,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:11:14,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:11:14,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:11:14,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:11:14,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:11:14,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (1/1) ... [2021-11-02 22:11:14,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:14,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:14,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:11:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:11:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:11:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:11:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:11:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:11:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:11:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:11:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:11:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:11:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:11:14,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:11:14,602 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-02 22:11:14,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:14 BoogieIcfgContainer [2021-11-02 22:11:14,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:11:14,605 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:11:14,606 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:11:14,609 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:11:14,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:11:14,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:11:13" (1/3) ... [2021-11-02 22:11:14,611 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a7c63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:11:14, skipping insertion in model container [2021-11-02 22:11:14,611 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:11:14,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:14" (2/3) ... [2021-11-02 22:11:14,611 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a7c63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:11:14, skipping insertion in model container [2021-11-02 22:11:14,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:11:14,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:14" (3/3) ... [2021-11-02 22:11:14,613 INFO L389 chiAutomizerObserver]: Analyzing ICFG simple-ext.i [2021-11-02 22:11:14,667 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:11:14,667 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:11:14,667 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:11:14,667 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:11:14,668 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:11:14,668 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:11:14,668 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:11:14,668 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:11:14,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) 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) [2021-11-02 22:11:14,702 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-02 22:11:14,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:14,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:14,709 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-02 22:11:14,709 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:11:14,709 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:11:14,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) 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) [2021-11-02 22:11:14,711 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-02 22:11:14,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:14,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:14,712 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-02 22:11:14,712 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:11:14,719 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 10#L-1true havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 11#L533true assume main_~a~0.base == 0 && main_~a~0.offset == 0;myexit_#in~s := 1;havoc myexit_~s;myexit_~s := myexit_#in~s; 3#L525true [2021-11-02 22:11:14,719 INFO L793 eck$LassoCheckResult]: Loop: 3#L525true assume true; 3#L525true [2021-11-02 22:11:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:14,725 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-02 22:11:14,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:14,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883595070] [2021-11-02 22:11:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:14,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:14,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:14,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883595070] [2021-11-02 22:11:14,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883595070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:14,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:14,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:11:14,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284218646] [2021-11-02 22:11:14,904 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:11:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2021-11-02 22:11:14,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:14,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404681454] [2021-11-02 22:11:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:14,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:14,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:14,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:14,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:14,960 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:14,979 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2021-11-02 22:11:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:14,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2021-11-02 22:11:14,983 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-02 22:11:14,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 14 states and 17 transitions. [2021-11-02 22:11:14,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 22:11:14,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-02 22:11:14,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-11-02 22:11:14,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:11:14,988 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-02 22:11:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-11-02 22:11:15,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-02 22:11:15,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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) [2021-11-02 22:11:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-02 22:11:15,015 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-02 22:11:15,015 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-02 22:11:15,015 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:11:15,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-11-02 22:11:15,016 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-02 22:11:15,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:15,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:15,017 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-02 22:11:15,017 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:11:15,017 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 51#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 56#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 57#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 49#L537-2 [2021-11-02 22:11:15,017 INFO L793 eck$LassoCheckResult]: Loop: 49#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 58#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 48#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 49#L537-2 [2021-11-02 22:11:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2021-11-02 22:11:15,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:15,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043152505] [2021-11-02 22:11:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:15,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,039 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:15,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash 48852, now seen corresponding path program 1 times [2021-11-02 22:11:15,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:15,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549858210] [2021-11-02 22:11:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:15,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,090 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1807773776, now seen corresponding path program 1 times [2021-11-02 22:11:15,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:15,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766202295] [2021-11-02 22:11:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:15,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,165 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:15,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:16,028 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:11:16,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:11:16,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:11:16,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:11:16,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:11:16,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:16,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:11:16,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:11:16,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: simple-ext.i_Iteration2_Lasso [2021-11-02 22:11:16,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:11:16,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:11:16,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:11:16,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:11:16,921 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:11:16,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:16,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:16,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:16,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:16,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:16,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:16,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:16,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:16,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:16,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:16,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:16,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:11:16,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:16,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:16,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:16,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:16,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:11:17,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:11:17,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:11:17,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:17,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:17,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:11:17,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,273 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:11:17,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,364 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:17,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:11:17,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:17,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:17,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:11:17,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:11:17,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,589 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:11:17,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,631 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:11:17,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:17,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:17,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,710 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:11:17,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,768 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:11:17,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-11-02 22:11:17,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,811 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 22:11:17,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,821 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-02 22:11:17,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,823 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-02 22:11:17,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,865 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 22:11:17,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:17,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:17,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:17,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:17,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:17,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:17,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:17,939 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:17,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 22:11:17,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:17,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:17,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:17,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:17,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:17,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:17,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:17,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,014 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 22:11:18,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,063 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 22:11:18,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,105 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 22:11:18,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,152 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 22:11:18,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 22:11:18,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-02 22:11:18,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,258 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-02 22:11:18,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-02 22:11:18,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,288 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-02 22:11:18,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:18,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:18,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,350 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 22:11:18,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:18,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:18,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,386 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 22:11:18,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:18,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:18,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-02 22:11:18,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,460 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 22:11:18,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:11:18,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:11:18,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:11:18,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:11:18,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-02 22:11:18,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,511 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:11:18,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-02 22:11:18,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:11:18,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:11:18,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:11:18,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:11:18,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 22:11:18,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 22:11:18,549 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:11:18,568 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 22:11:18,568 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-11-02 22:11:18,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:11:18,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:18,606 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:18,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 22:11:18,654 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:11:18,690 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 22:11:18,690 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:11:18,691 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 59 Supporting invariants [] [2021-11-02 22:11:18,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:18,791 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2021-11-02 22:11:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:18,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:11:18,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:18,910 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:11:18,911 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:18,956 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 19 states and 26 transitions. Complement of second has 7 states. [2021-11-02 22:11:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 22:11:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-02 22:11:18,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-02 22:11:18,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:11:18,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 7 letters. Loop has 3 letters. [2021-11-02 22:11:18,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:11:18,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 6 letters. [2021-11-02 22:11:18,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:11:18,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-11-02 22:11:18,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-11-02 22:11:18,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2021-11-02 22:11:18,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-02 22:11:18,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 22:11:18,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-11-02 22:11:18,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:11:18,972 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-02 22:11:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-11-02 22:11:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-02 22:11:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-11-02 22:11:18,976 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-02 22:11:18,976 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-02 22:11:18,976 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:11:18,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-11-02 22:11:18,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-11-02 22:11:18,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:18,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:18,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:11:18,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:11:18,982 INFO L791 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 161#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 166#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 167#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 168#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 163#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 164#L549-2 [2021-11-02 22:11:18,982 INFO L793 eck$LassoCheckResult]: Loop: 164#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 172#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 173#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 164#L549-2 [2021-11-02 22:11:18,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash 889599219, now seen corresponding path program 1 times [2021-11-02 22:11:18,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:18,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942771464] [2021-11-02 22:11:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:18,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,029 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash 69737, now seen corresponding path program 1 times [2021-11-02 22:11:19,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490061865] [2021-11-02 22:11:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2102156855, now seen corresponding path program 1 times [2021-11-02 22:11:19,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562621626] [2021-11-02 22:11:19,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:19,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:19,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562621626] [2021-11-02 22:11:19,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562621626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:19,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:19,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:11:19,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461970963] [2021-11-02 22:11:19,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:19,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:19,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:11:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:19,316 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:19,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:19,412 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2021-11-02 22:11:19,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:11:19,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2021-11-02 22:11:19,414 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6 [2021-11-02 22:11:19,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 35 transitions. [2021-11-02 22:11:19,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-02 22:11:19,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-02 22:11:19,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-11-02 22:11:19,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:11:19,418 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-11-02 22:11:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-11-02 22:11:19,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2021-11-02 22:11:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 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) [2021-11-02 22:11:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-11-02 22:11:19,421 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-11-02 22:11:19,422 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-11-02 22:11:19,422 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:11:19,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-11-02 22:11:19,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-11-02 22:11:19,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:19,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:19,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:11:19,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:11:19,424 INFO L791 eck$LassoCheckResult]: Stem: 220#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 221#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 226#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 227#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 231#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 228#L540 assume main_~t~0.base == 0 && main_~t~0.offset == 0;myexit_#in~s := 1;havoc myexit_~s;myexit_~s := myexit_#in~s; 229#L525-1 [2021-11-02 22:11:19,424 INFO L793 eck$LassoCheckResult]: Loop: 229#L525-1 assume true; 229#L525-1 [2021-11-02 22:11:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 889599272, now seen corresponding path program 1 times [2021-11-02 22:11:19,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959006924] [2021-11-02 22:11:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:19,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:19,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959006924] [2021-11-02 22:11:19,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959006924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:19,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:19,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:11:19,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176633064] [2021-11-02 22:11:19,452 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:11:19,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,453 INFO L85 PathProgramCache]: Analyzing trace with hash 102, now seen corresponding path program 1 times [2021-11-02 22:11:19,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373467735] [2021-11-02 22:11:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:19,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:19,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:19,473 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:19,482 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-11-02 22:11:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:19,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-11-02 22:11:19,484 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-11-02 22:11:19,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 21 transitions. [2021-11-02 22:11:19,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-02 22:11:19,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-02 22:11:19,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-11-02 22:11:19,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:11:19,486 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-02 22:11:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-11-02 22:11:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-11-02 22:11:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-02 22:11:19,490 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 22:11:19,490 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 22:11:19,490 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:11:19,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-11-02 22:11:19,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-02 22:11:19,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:19,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:19,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:19,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 22:11:19,493 INFO L791 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 264#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 269#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 270#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 271#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 267#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 268#L549-2 assume !(main_~p~0.base != 0 || main_~p~0.offset != 0); 266#L549-3 main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset; 265#L557-2 [2021-11-02 22:11:19,493 INFO L793 eck$LassoCheckResult]: Loop: 265#L557-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~tmp~0.base, main_~tmp~0.offset := main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;call ULTIMATE.dealloc(main_~p~0.base, main_~p~0.offset);main_~p~0.base, main_~p~0.offset := main_~tmp~0.base, main_~tmp~0.offset; 265#L557-2 [2021-11-02 22:11:19,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash 206358786, now seen corresponding path program 1 times [2021-11-02 22:11:19,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619001702] [2021-11-02 22:11:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:19,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:19,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619001702] [2021-11-02 22:11:19,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619001702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:19,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:19,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:11:19,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15468957] [2021-11-02 22:11:19,553 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:11:19,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,553 INFO L85 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2021-11-02 22:11:19,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179030895] [2021-11-02 22:11:19,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,562 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:11:19,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:19,660 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 6 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) [2021-11-02 22:11:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:19,704 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-11-02 22:11:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:11:19,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2021-11-02 22:11:19,709 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-02 22:11:19,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 22 transitions. [2021-11-02 22:11:19,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-02 22:11:19,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-02 22:11:19,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-11-02 22:11:19,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:11:19,710 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-02 22:11:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-11-02 22:11:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-11-02 22:11:19,712 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) [2021-11-02 22:11:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-02 22:11:19,713 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-02 22:11:19,713 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-02 22:11:19,714 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-02 22:11:19,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-11-02 22:11:19,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-02 22:11:19,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:19,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:19,716 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:19,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:11:19,716 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 311#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 316#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 317#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 319#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 318#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 308#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 309#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 313#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 314#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 320#L550 [2021-11-02 22:11:19,716 INFO L793 eck$LassoCheckResult]: Loop: 320#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 321#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 322#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 320#L550 [2021-11-02 22:11:19,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash 793653610, now seen corresponding path program 1 times [2021-11-02 22:11:19,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850238583] [2021-11-02 22:11:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,756 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,807 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,810 INFO L85 PathProgramCache]: Analyzing trace with hash 76517, now seen corresponding path program 2 times [2021-11-02 22:11:19,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209720494] [2021-11-02 22:11:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,817 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:19,825 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash -60222244, now seen corresponding path program 1 times [2021-11-02 22:11:19,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:19,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939837929] [2021-11-02 22:11:19,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:19,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:19,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939837929] [2021-11-02 22:11:19,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939837929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:19,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698595087] [2021-11-02 22:11:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:19,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:19,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:19,964 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:19,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-02 22:11:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:20,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-02 22:11:20,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:20,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:11:20,125 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 22:11:20,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-02 22:11:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:11:20,221 INFO L388 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 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-02 22:11:20,303 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-02 22:11:20,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 22 [2021-11-02 22:11:20,347 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-02 22:11:20,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2021-11-02 22:11:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:20,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698595087] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:20,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:11:20,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2021-11-02 22:11:20,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569974396] [2021-11-02 22:11:20,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:20,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 22:11:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:11:20,467 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:20,632 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-11-02 22:11:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:11:20,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 27 transitions. [2021-11-02 22:11:20,633 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-02 22:11:20,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 24 transitions. [2021-11-02 22:11:20,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 22:11:20,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-02 22:11:20,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 24 transitions. [2021-11-02 22:11:20,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:11:20,634 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-11-02 22:11:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 24 transitions. [2021-11-02 22:11:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-11-02 22:11:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-11-02 22:11:20,636 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-11-02 22:11:20,636 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-11-02 22:11:20,636 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-02 22:11:20,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2021-11-02 22:11:20,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-02 22:11:20,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:11:20,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:11:20,638 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:20,638 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:11:20,638 INFO L791 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 410#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 415#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 416#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 419#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 420#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 407#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 408#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 417#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 418#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 424#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 412#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 413#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 421#L550 [2021-11-02 22:11:20,638 INFO L793 eck$LassoCheckResult]: Loop: 421#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 422#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 423#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 421#L550 [2021-11-02 22:11:20,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:20,638 INFO L85 PathProgramCache]: Analyzing trace with hash -8921739, now seen corresponding path program 2 times [2021-11-02 22:11:20,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:20,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205074569] [2021-11-02 22:11:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:20,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:20,660 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:20,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash 76517, now seen corresponding path program 3 times [2021-11-02 22:11:20,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:20,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597847033] [2021-11-02 22:11:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:20,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:20,711 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:11:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:11:20,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:11:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 500492529, now seen corresponding path program 2 times [2021-11-02 22:11:20,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:20,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706535643] [2021-11-02 22:11:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:20,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:20,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706535643] [2021-11-02 22:11:20,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706535643] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003658219] [2021-11-02 22:11:20,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:11:20,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:20,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:20,898 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:20,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-02 22:11:20,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:11:20,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:11:21,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-02 22:11:21,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:21,080 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 22:11:21,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-02 22:11:21,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:11:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:11:21,162 INFO L388 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 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-02 22:11:21,229 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 22:11:21,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-02 22:11:21,243 INFO L388 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 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-02 22:11:21,313 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-02 22:11:21,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2021-11-02 22:11:21,393 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-02 22:11:21,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 22 [2021-11-02 22:11:21,440 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-02 22:11:21,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2021-11-02 22:11:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:21,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003658219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:21,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:11:21,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2021-11-02 22:11:21,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839653957] [2021-11-02 22:11:21,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 22:11:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-02 22:11:21,541 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. cyclomatic complexity: 5 Second operand has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 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) [2021-11-02 22:11:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:21,647 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-11-02 22:11:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:11:21,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2021-11-02 22:11:21,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:11:21,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-02 22:11:21,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:11:21,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:11:21,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:11:21,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:11:21,649 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:11:21,649 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:11:21,649 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:11:21,649 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-02 22:11:21,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:11:21,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:11:21,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 22:11:21,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:11:21 BoogieIcfgContainer [2021-11-02 22:11:21,659 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:11:21,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:11:21,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:11:21,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:11:21,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:14" (3/4) ... [2021-11-02 22:11:21,667 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:11:21,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:11:21,668 INFO L168 Benchmark]: Toolchain (without parser) took 8026.53 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 55.5 MB in the beginning and 74.2 MB in the end (delta: -18.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,668 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:11:21,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.51 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.2 MB in the beginning and 78.0 MB in the end (delta: -22.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.73 ms. Allocated memory is still 109.1 MB. Free memory was 78.0 MB in the beginning and 76.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,669 INFO L168 Benchmark]: Boogie Preprocessor took 38.97 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,670 INFO L168 Benchmark]: RCFGBuilder took 408.68 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 62.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,671 INFO L168 Benchmark]: BuchiAutomizer took 7053.28 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 62.8 MB in the beginning and 74.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:11:21,671 INFO L168 Benchmark]: Witness Printer took 7.28 ms. Allocated memory is still 136.3 MB. Free memory is still 74.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:11:21,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 431.51 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.2 MB in the beginning and 78.0 MB in the end (delta: -22.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.73 ms. Allocated memory is still 109.1 MB. Free memory was 78.0 MB in the beginning and 76.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.97 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 408.68 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 62.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7053.28 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 62.8 MB in the beginning and 74.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.28 ms. Allocated memory is still 136.3 MB. Free memory is still 74.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (6 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 59 and consists of 4 locations. 6 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 110 SDslu, 63 SDs, 0 SdLazy, 247 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN2 SILU1 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital244 mio100 ax107 hnf100 lsp88 ukn49 mio100 lsp27 div100 bol100 ite100 ukn100 eq151 hnf95 smp100 dnf168 smp92 tf100 neg94 sie136 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 22:11:21,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:21,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:22,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a977ad9d-62cb-4eee-8505-e4554f125474/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE