./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c --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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/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 a44e961521da9b8f4535724e185f402d94bec27d495ab6df10e2b3c1ffa4513a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:14:39,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:14:39,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:14:39,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:14:39,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:14:39,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:14:39,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:14:39,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:14:39,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:14:39,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:14:39,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:14:39,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:14:39,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:14:39,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:14:39,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:14:39,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:14:39,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:14:39,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:14:39,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:14:39,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:14:39,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:14:39,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:14:39,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:14:39,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:14:39,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:14:39,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:14:39,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:14:39,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:14:39,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:14:39,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:14:39,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:14:39,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:14:39,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:14:39,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:14:39,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:14:39,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:14:39,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:14:39,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:14:39,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:14:39,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:14:39,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:14:39,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 23:14:39,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:14:39,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:14:39,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:14:39,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:14:39,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:14:39,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:14:39,273 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:14:39,274 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:14:39,274 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:14:39,274 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:14:39,275 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:14:39,276 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:14:39,276 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:14:39,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:14:39,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:14:39,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:14:39,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:14:39,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:14:39,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:14:39,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:14:39,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:14:39,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:14:39,278 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:14:39,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:14:39,279 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:14:39,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:14:39,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:14:39,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:14:39,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:14:39,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:14:39,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:14:39,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:14:39,282 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:14:39,282 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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a44e961521da9b8f4535724e185f402d94bec27d495ab6df10e2b3c1ffa4513a [2021-11-02 23:14:39,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:14:39,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:14:39,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:14:39,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:14:39,613 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:14:39,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2021-11-02 23:14:39,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/data/d077a23fc/2336ee59b3024755a841ceda39a47fe7/FLAG4198cf043 [2021-11-02 23:14:40,140 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:14:40,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2021-11-02 23:14:40,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/data/d077a23fc/2336ee59b3024755a841ceda39a47fe7/FLAG4198cf043 [2021-11-02 23:14:40,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/data/d077a23fc/2336ee59b3024755a841ceda39a47fe7 [2021-11-02 23:14:40,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:14:40,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:14:40,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:14:40,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:14:40,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:14:40,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:40,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64efd780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40, skipping insertion in model container [2021-11-02 23:14:40,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:40,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:14:40,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:14:40,834 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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c[16936,16949] [2021-11-02 23:14:40,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:14:40,845 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:14:40,911 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_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c[16936,16949] [2021-11-02 23:14:40,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:14:40,928 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:14:40,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40 WrapperNode [2021-11-02 23:14:40,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:14:40,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:14:40,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:14:40,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:14:40,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:40,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:14:41,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:14:41,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:14:41,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:14:41,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:14:41,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:14:41,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:14:41,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:14:41,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (1/1) ... [2021-11-02 23:14:41,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:41,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:41,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:41,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:14:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:14:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:14:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:14:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:14:41,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:14:41,912 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-11-02 23:14:41,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:14:41 BoogieIcfgContainer [2021-11-02 23:14:41,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:14:41,916 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:14:41,916 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:14:41,920 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:14:41,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:14:41,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:14:40" (1/3) ... [2021-11-02 23:14:41,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e78c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:14:41, skipping insertion in model container [2021-11-02 23:14:41,924 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:14:41,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:14:40" (2/3) ... [2021-11-02 23:14:41,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e78c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:14:41, skipping insertion in model container [2021-11-02 23:14:41,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:14:41,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:14:41" (3/3) ... [2021-11-02 23:14:41,926 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2021-11-02 23:14:41,977 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:14:41,978 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:14:41,978 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:14:41,978 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:14:41,978 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:14:41,978 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:14:41,978 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:14:41,978 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:14:41,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 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 23:14:42,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2021-11-02 23:14:42,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:14:42,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:14:42,032 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,032 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,032 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:14:42,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 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 23:14:42,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2021-11-02 23:14:42,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:14:42,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:14:42,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,060 INFO L791 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(48);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 39#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~ret50, main_#t~ret51, main_#t~post52, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~send1~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode1~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive1~0 := main_#t~nondet24;havoc main_#t~nondet24;~id2~0 := main_#t~nondet25;havoc main_#t~nondet25;~st2~0 := main_#t~nondet26;havoc main_#t~nondet26;~send2~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode2~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive2~0 := main_#t~nondet29;havoc main_#t~nondet29;~id3~0 := main_#t~nondet30;havoc main_#t~nondet30;~st3~0 := main_#t~nondet31;havoc main_#t~nondet31;~send3~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode3~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive3~0 := main_#t~nondet34;havoc main_#t~nondet34;~id4~0 := main_#t~nondet35;havoc main_#t~nondet35;~st4~0 := main_#t~nondet36;havoc main_#t~nondet36;~send4~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode4~0 := main_#t~nondet38;havoc main_#t~nondet38;~alive4~0 := main_#t~nondet39;havoc main_#t~nondet39;~id5~0 := main_#t~nondet40;havoc main_#t~nondet40;~st5~0 := main_#t~nondet41;havoc main_#t~nondet41;~send5~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode5~0 := main_#t~nondet43;havoc main_#t~nondet43;~alive5~0 := main_#t~nondet44;havoc main_#t~nondet44;~id6~0 := main_#t~nondet45;havoc main_#t~nondet45;~st6~0 := main_#t~nondet46;havoc main_#t~nondet46;~send6~0 := main_#t~nondet47;havoc main_#t~nondet47;~mode6~0 := main_#t~nondet48;havoc main_#t~nondet48;~alive6~0 := main_#t~nondet49;havoc main_#t~nondet49;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 27#L288true assume !(0 == ~r1~0);init_~tmp~0 := 0; 65#L288-1true init_#res := init_~tmp~0; 43#L453true main_#t~ret50 := init_#res;main_~i2~0 := main_#t~ret50;havoc main_#t~ret50;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 41#L22true assume 0 == assume_abort_if_not_~cond;assume false; 97#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 86#L529-2true [2021-11-02 23:14:42,070 INFO L793 eck$LassoCheckResult]: Loop: 86#L529-2true assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 120#L84true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 94#L88true assume !(node1_~m1~0 != ~nomsg~0); 116#L88-1true ~mode1~0 := 0; 26#L84-2true havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 124#L119true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 50#L122true assume !(node2_~m2~0 != ~nomsg~0); 42#L122-1true ~mode2~0 := 0; 45#L119-2true havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 10#L153true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 134#L156true assume !(node3_~m3~0 != ~nomsg~0); 100#L156-1true ~mode3~0 := 0; 128#L153-2true havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 126#L187true assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 61#L190true assume !(node4_~m4~0 != ~nomsg~0); 98#L190-1true ~mode4~0 := 0; 85#L187-2true havoc node5_#t~ite15, node5_#t~ite16, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 89#L221true assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 78#L224true assume !(node5_~m5~0 != ~nomsg~0); 125#L224-1true ~mode5~0 := 0; 59#L221-2true havoc node6_#t~ite17, node6_#t~ite18, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 20#L255true assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 33#L258true assume !(node6_~m6~0 != ~nomsg~0); 13#L258-1true ~mode6~0 := 0; 133#L255-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 5#L461true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 49#L461-1true check_#res := check_~tmp~1; 131#L473true main_#t~ret51 := check_#res;main_~c1~0 := main_#t~ret51;havoc main_#t~ret51;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 84#L562true assume !(0 == assert_~arg % 256); 142#L557true main_#t~post52 := main_~i2~0;main_~i2~0 := 1 + main_#t~post52;havoc main_#t~post52; 86#L529-2true [2021-11-02 23:14:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:42,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2035845626, now seen corresponding path program 1 times [2021-11-02 23:14:42,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:42,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457956701] [2021-11-02 23:14:42,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:42,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:42,363 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 23:14:42,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:42,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457956701] [2021-11-02 23:14:42,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457956701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:42,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:42,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:14:42,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595425088] [2021-11-02 23:14:42,372 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 23:14:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 1 times [2021-11-02 23:14:42,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:42,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387835921] [2021-11-02 23:14:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:42,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:42,624 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 23:14:42,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:42,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387835921] [2021-11-02 23:14:42,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387835921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:42,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:42,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:14:42,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827980308] [2021-11-02 23:14:42,630 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 23:14:42,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:14:42,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:14:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:14:42,650 INFO L87 Difference]: Start difference. First operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 23:14:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:14:42,664 INFO L93 Difference]: Finished difference Result 144 states and 242 transitions. [2021-11-02 23:14:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:14:42,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 242 transitions. [2021-11-02 23:14:42,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:42,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 139 states and 237 transitions. [2021-11-02 23:14:42,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-11-02 23:14:42,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-11-02 23:14:42,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 237 transitions. [2021-11-02 23:14:42,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:14:42,681 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-11-02 23:14:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 237 transitions. [2021-11-02 23:14:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-02 23:14:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.7050359712230216) internal successors, (237), 138 states have internal predecessors, (237), 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 23:14:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 237 transitions. [2021-11-02 23:14:42,719 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-11-02 23:14:42,720 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-11-02 23:14:42,720 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:14:42,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 237 transitions. [2021-11-02 23:14:42,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:42,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:14:42,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:14:42,724 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,725 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,725 INFO L791 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(48);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 365#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~ret50, main_#t~ret51, main_#t~post52, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~send1~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode1~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive1~0 := main_#t~nondet24;havoc main_#t~nondet24;~id2~0 := main_#t~nondet25;havoc main_#t~nondet25;~st2~0 := main_#t~nondet26;havoc main_#t~nondet26;~send2~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode2~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive2~0 := main_#t~nondet29;havoc main_#t~nondet29;~id3~0 := main_#t~nondet30;havoc main_#t~nondet30;~st3~0 := main_#t~nondet31;havoc main_#t~nondet31;~send3~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode3~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive3~0 := main_#t~nondet34;havoc main_#t~nondet34;~id4~0 := main_#t~nondet35;havoc main_#t~nondet35;~st4~0 := main_#t~nondet36;havoc main_#t~nondet36;~send4~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode4~0 := main_#t~nondet38;havoc main_#t~nondet38;~alive4~0 := main_#t~nondet39;havoc main_#t~nondet39;~id5~0 := main_#t~nondet40;havoc main_#t~nondet40;~st5~0 := main_#t~nondet41;havoc main_#t~nondet41;~send5~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode5~0 := main_#t~nondet43;havoc main_#t~nondet43;~alive5~0 := main_#t~nondet44;havoc main_#t~nondet44;~id6~0 := main_#t~nondet45;havoc main_#t~nondet45;~st6~0 := main_#t~nondet46;havoc main_#t~nondet46;~send6~0 := main_#t~nondet47;havoc main_#t~nondet47;~mode6~0 := main_#t~nondet48;havoc main_#t~nondet48;~alive6~0 := main_#t~nondet49;havoc main_#t~nondet49;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 349#L288 assume !(0 == ~r1~0);init_~tmp~0 := 0; 306#L288-1 init_#res := init_~tmp~0; 370#L453 main_#t~ret50 := init_#res;main_~i2~0 := main_#t~ret50;havoc main_#t~ret50;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 366#L22 assume !(0 == assume_abort_if_not_~cond); 367#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 420#L529-2 [2021-11-02 23:14:42,725 INFO L793 eck$LassoCheckResult]: Loop: 420#L529-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 421#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 425#L88 assume !(node1_~m1~0 != ~nomsg~0); 362#L88-1 ~mode1~0 := 0; 347#L84-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 348#L119 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 376#L122 assume !(node2_~m2~0 != ~nomsg~0); 340#L122-1 ~mode2~0 := 0; 330#L119-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 314#L153 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 315#L156 assume !(node3_~m3~0 != ~nomsg~0); 312#L156-1 ~mode3~0 := 0; 429#L153-2 havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 436#L187 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 387#L190 assume !(node4_~m4~0 != ~nomsg~0); 388#L190-1 ~mode4~0 := 0; 418#L187-2 havoc node5_#t~ite15, node5_#t~ite16, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 419#L221 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 410#L224 assume !(node5_~m5~0 != ~nomsg~0); 319#L224-1 ~mode5~0 := 0; 382#L221-2 havoc node6_#t~ite17, node6_#t~ite18, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 331#L255 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 332#L258 assume !(node6_~m6~0 != ~nomsg~0); 322#L258-1 ~mode6~0 := 0; 323#L255-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 301#L461 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 302#L461-1 check_#res := check_~tmp~1; 375#L473 main_#t~ret51 := check_#res;main_~c1~0 := main_#t~ret51;havoc main_#t~ret51;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 416#L562 assume !(0 == assert_~arg % 256); 417#L557 main_#t~post52 := main_~i2~0;main_~i2~0 := 1 + main_#t~post52;havoc main_#t~post52; 420#L529-2 [2021-11-02 23:14:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2035845688, now seen corresponding path program 1 times [2021-11-02 23:14:42,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:42,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014123633] [2021-11-02 23:14:42,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:42,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:42,785 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 23:14:42,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:42,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014123633] [2021-11-02 23:14:42,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014123633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:42,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:42,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:14:42,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652092696] [2021-11-02 23:14:42,787 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 23:14:42,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:42,787 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 2 times [2021-11-02 23:14:42,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:42,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612864747] [2021-11-02 23:14:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:42,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:42,877 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 23:14:42,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:42,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612864747] [2021-11-02 23:14:42,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612864747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:42,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:42,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:14:42,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030864326] [2021-11-02 23:14:42,879 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 23:14:42,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:14:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:14:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:14:42,881 INFO L87 Difference]: Start difference. First operand 139 states and 237 transitions. cyclomatic complexity: 99 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 23:14:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:14:42,966 INFO L93 Difference]: Finished difference Result 142 states and 239 transitions. [2021-11-02 23:14:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:14:42,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 239 transitions. [2021-11-02 23:14:42,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:42,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 139 states and 196 transitions. [2021-11-02 23:14:42,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-11-02 23:14:42,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-11-02 23:14:42,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 196 transitions. [2021-11-02 23:14:42,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:14:42,973 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-11-02 23:14:42,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 196 transitions. [2021-11-02 23:14:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-02 23:14:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.410071942446043) internal successors, (196), 138 states have internal predecessors, (196), 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 23:14:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 196 transitions. [2021-11-02 23:14:42,982 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-11-02 23:14:42,982 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-11-02 23:14:42,983 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 23:14:42,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 196 transitions. [2021-11-02 23:14:42,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:42,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:14:42,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:14:42,986 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:42,987 INFO L791 eck$LassoCheckResult]: Stem: 731#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(48);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 660#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~ret50, main_#t~ret51, main_#t~post52, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~send1~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode1~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive1~0 := main_#t~nondet24;havoc main_#t~nondet24;~id2~0 := main_#t~nondet25;havoc main_#t~nondet25;~st2~0 := main_#t~nondet26;havoc main_#t~nondet26;~send2~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode2~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive2~0 := main_#t~nondet29;havoc main_#t~nondet29;~id3~0 := main_#t~nondet30;havoc main_#t~nondet30;~st3~0 := main_#t~nondet31;havoc main_#t~nondet31;~send3~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode3~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive3~0 := main_#t~nondet34;havoc main_#t~nondet34;~id4~0 := main_#t~nondet35;havoc main_#t~nondet35;~st4~0 := main_#t~nondet36;havoc main_#t~nondet36;~send4~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode4~0 := main_#t~nondet38;havoc main_#t~nondet38;~alive4~0 := main_#t~nondet39;havoc main_#t~nondet39;~id5~0 := main_#t~nondet40;havoc main_#t~nondet40;~st5~0 := main_#t~nondet41;havoc main_#t~nondet41;~send5~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode5~0 := main_#t~nondet43;havoc main_#t~nondet43;~alive5~0 := main_#t~nondet44;havoc main_#t~nondet44;~id6~0 := main_#t~nondet45;havoc main_#t~nondet45;~st6~0 := main_#t~nondet46;havoc main_#t~nondet46;~send6~0 := main_#t~nondet47;havoc main_#t~nondet47;~mode6~0 := main_#t~nondet48;havoc main_#t~nondet48;~alive6~0 := main_#t~nondet49;havoc main_#t~nondet49;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 645#L288 assume 0 == ~r1~0; 646#L289 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 + ~alive5~0 % 256 + ~alive6~0 % 256 >= 1; 655#L290 assume ~id1~0 >= 0; 704#L291 assume 0 == ~st1~0; 705#L292 assume ~send1~0 == ~id1~0; 720#L293 assume 0 == ~mode1~0 % 256; 730#L294 assume ~id2~0 >= 0; 604#L295 assume 0 == ~st2~0; 605#L296 assume ~send2~0 == ~id2~0; 654#L297 assume 0 == ~mode2~0 % 256; 651#L298 assume ~id3~0 >= 0; 652#L299 assume 0 == ~st3~0; 658#L300 assume ~send3~0 == ~id3~0; 693#L301 assume 0 == ~mode3~0 % 256; 716#L302 assume ~id4~0 >= 0; 717#L303 assume 0 == ~st4~0; 724#L304 assume ~send4~0 == ~id4~0; 686#L305 assume 0 == ~mode4~0 % 256; 687#L306 assume ~id5~0 >= 0; 703#L307 assume 0 == ~st5~0; 615#L308 assume ~send5~0 == ~id5~0; 616#L309 assume 0 == ~mode5~0 % 256; 700#L310 assume ~id6~0 >= 0; 672#L311 assume 0 == ~st6~0; 673#L312 assume ~send6~0 == ~id6~0; 637#L313 assume 0 == ~mode6~0 % 256; 638#L314 assume ~id1~0 != ~id2~0; 666#L315 assume ~id1~0 != ~id3~0; 667#L316 assume ~id1~0 != ~id4~0; 602#L317 assume ~id1~0 != ~id5~0; 603#L318 assume ~id1~0 != ~id6~0; 733#L319 assume ~id2~0 != ~id3~0; 713#L320 assume ~id2~0 != ~id4~0; 688#L321 assume ~id2~0 != ~id5~0; 689#L322 assume ~id2~0 != ~id6~0; 600#L323 assume ~id3~0 != ~id4~0; 601#L324 assume ~id3~0 != ~id5~0; 623#L325 assume ~id3~0 != ~id6~0; 647#L326 assume ~id4~0 != ~id5~0; 632#L327 assume ~id4~0 != ~id6~0; 633#L328 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 692#L288-1 init_#res := init_~tmp~0; 665#L453 main_#t~ret50 := init_#res;main_~i2~0 := main_#t~ret50;havoc main_#t~ret50;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 661#L22 assume !(0 == assume_abort_if_not_~cond); 662#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 718#L529-2 [2021-11-02 23:14:42,987 INFO L793 eck$LassoCheckResult]: Loop: 718#L529-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 719#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 721#L88 assume !(node1_~m1~0 != ~nomsg~0); 657#L88-1 ~mode1~0 := 0; 642#L84-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 643#L119 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 671#L122 assume !(node2_~m2~0 != ~nomsg~0); 635#L122-1 ~mode2~0 := 0; 625#L119-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 609#L153 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 610#L156 assume !(node3_~m3~0 != ~nomsg~0); 607#L156-1 ~mode3~0 := 0; 725#L153-2 havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 732#L187 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 682#L190 assume !(node4_~m4~0 != ~nomsg~0); 683#L190-1 ~mode4~0 := 0; 714#L187-2 havoc node5_#t~ite15, node5_#t~ite16, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 715#L221 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 706#L224 assume !(node5_~m5~0 != ~nomsg~0); 614#L224-1 ~mode5~0 := 0; 680#L221-2 havoc node6_#t~ite17, node6_#t~ite18, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 626#L255 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 627#L258 assume !(node6_~m6~0 != ~nomsg~0); 617#L258-1 ~mode6~0 := 0; 618#L255-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 597#L461 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 598#L461-1 check_#res := check_~tmp~1; 670#L473 main_#t~ret51 := check_#res;main_~c1~0 := main_#t~ret51;havoc main_#t~ret51;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 711#L562 assume !(0 == assert_~arg % 256); 712#L557 main_#t~post52 := main_~i2~0;main_~i2~0 := 1 + main_#t~post52;havoc main_#t~post52; 718#L529-2 [2021-11-02 23:14:42,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:42,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1766357374, now seen corresponding path program 1 times [2021-11-02 23:14:42,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:42,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547273384] [2021-11-02 23:14:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:42,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:14:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:14:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 3 times [2021-11-02 23:14:43,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:43,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67538697] [2021-11-02 23:14:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:43,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:43,327 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 23:14:43,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:43,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67538697] [2021-11-02 23:14:43,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67538697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:43,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:43,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:14:43,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396087070] [2021-11-02 23:14:43,330 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 23:14:43,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:14:43,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:14:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:14:43,332 INFO L87 Difference]: Start difference. First operand 139 states and 196 transitions. cyclomatic complexity: 58 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 23:14:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:14:43,407 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-11-02 23:14:43,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:14:43,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-11-02 23:14:43,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:43,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 139 states and 194 transitions. [2021-11-02 23:14:43,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-11-02 23:14:43,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-11-02 23:14:43,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 194 transitions. [2021-11-02 23:14:43,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:14:43,421 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-11-02 23:14:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 194 transitions. [2021-11-02 23:14:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-02 23:14:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.39568345323741) internal successors, (194), 138 states have internal predecessors, (194), 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 23:14:43,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 194 transitions. [2021-11-02 23:14:43,433 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-11-02 23:14:43,433 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-11-02 23:14:43,433 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 23:14:43,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 194 transitions. [2021-11-02 23:14:43,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-11-02 23:14:43,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:14:43,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:14:43,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:43,437 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:14:43,437 INFO L791 eck$LassoCheckResult]: Stem: 1024#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(48);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 952#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~ret50, main_#t~ret51, main_#t~post52, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~send1~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode1~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive1~0 := main_#t~nondet24;havoc main_#t~nondet24;~id2~0 := main_#t~nondet25;havoc main_#t~nondet25;~st2~0 := main_#t~nondet26;havoc main_#t~nondet26;~send2~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode2~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive2~0 := main_#t~nondet29;havoc main_#t~nondet29;~id3~0 := main_#t~nondet30;havoc main_#t~nondet30;~st3~0 := main_#t~nondet31;havoc main_#t~nondet31;~send3~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode3~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive3~0 := main_#t~nondet34;havoc main_#t~nondet34;~id4~0 := main_#t~nondet35;havoc main_#t~nondet35;~st4~0 := main_#t~nondet36;havoc main_#t~nondet36;~send4~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode4~0 := main_#t~nondet38;havoc main_#t~nondet38;~alive4~0 := main_#t~nondet39;havoc main_#t~nondet39;~id5~0 := main_#t~nondet40;havoc main_#t~nondet40;~st5~0 := main_#t~nondet41;havoc main_#t~nondet41;~send5~0 := main_#t~nondet42;havoc main_#t~nondet42;~mode5~0 := main_#t~nondet43;havoc main_#t~nondet43;~alive5~0 := main_#t~nondet44;havoc main_#t~nondet44;~id6~0 := main_#t~nondet45;havoc main_#t~nondet45;~st6~0 := main_#t~nondet46;havoc main_#t~nondet46;~send6~0 := main_#t~nondet47;havoc main_#t~nondet47;~mode6~0 := main_#t~nondet48;havoc main_#t~nondet48;~alive6~0 := main_#t~nondet49;havoc main_#t~nondet49;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 937#L288 assume 0 == ~r1~0; 938#L289 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 + ~alive5~0 % 256 + ~alive6~0 % 256 >= 1; 947#L290 assume ~id1~0 >= 0; 997#L291 assume 0 == ~st1~0; 998#L292 assume ~send1~0 == ~id1~0; 1013#L293 assume 0 == ~mode1~0 % 256; 1023#L294 assume ~id2~0 >= 0; 896#L295 assume 0 == ~st2~0; 897#L296 assume ~send2~0 == ~id2~0; 946#L297 assume 0 == ~mode2~0 % 256; 943#L298 assume ~id3~0 >= 0; 944#L299 assume 0 == ~st3~0; 950#L300 assume ~send3~0 == ~id3~0; 986#L301 assume 0 == ~mode3~0 % 256; 1011#L302 assume ~id4~0 >= 0; 1012#L303 assume 0 == ~st4~0; 1017#L304 assume ~send4~0 == ~id4~0; 979#L305 assume 0 == ~mode4~0 % 256; 980#L306 assume ~id5~0 >= 0; 996#L307 assume 0 == ~st5~0; 907#L308 assume ~send5~0 == ~id5~0; 908#L309 assume 0 == ~mode5~0 % 256; 993#L310 assume ~id6~0 >= 0; 965#L311 assume 0 == ~st6~0; 966#L312 assume ~send6~0 == ~id6~0; 929#L313 assume 0 == ~mode6~0 % 256; 930#L314 assume ~id1~0 != ~id2~0; 958#L315 assume ~id1~0 != ~id3~0; 959#L316 assume ~id1~0 != ~id4~0; 894#L317 assume ~id1~0 != ~id5~0; 895#L318 assume ~id1~0 != ~id6~0; 1026#L319 assume ~id2~0 != ~id3~0; 1004#L320 assume ~id2~0 != ~id4~0; 981#L321 assume ~id2~0 != ~id5~0; 982#L322 assume ~id2~0 != ~id6~0; 892#L323 assume ~id3~0 != ~id4~0; 893#L324 assume ~id3~0 != ~id5~0; 912#L325 assume ~id3~0 != ~id6~0; 939#L326 assume ~id4~0 != ~id5~0; 924#L327 assume ~id4~0 != ~id6~0; 925#L328 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 983#L288-1 init_#res := init_~tmp~0; 955#L453 main_#t~ret50 := init_#res;main_~i2~0 := main_#t~ret50;havoc main_#t~ret50;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 953#L22 assume !(0 == assume_abort_if_not_~cond); 954#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 1009#L529-2 [2021-11-02 23:14:43,437 INFO L793 eck$LassoCheckResult]: Loop: 1009#L529-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 1010#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 1014#L88 assume !(node1_~m1~0 != ~nomsg~0); 949#L88-1 ~mode1~0 := 0; 934#L84-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 935#L119 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 964#L122 assume !(node2_~m2~0 != ~nomsg~0); 927#L122-1 ~mode2~0 := 0; 917#L119-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 901#L153 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 902#L156 assume !(node3_~m3~0 != ~nomsg~0); 899#L156-1 ~mode3~0 := 0; 1018#L153-2 havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 1025#L187 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 975#L190 assume !(node4_~m4~0 != ~nomsg~0); 976#L190-1 ~mode4~0 := 0; 1007#L187-2 havoc node5_#t~ite15, node5_#t~ite16, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 1008#L221 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 999#L224 assume !(node5_~m5~0 != ~nomsg~0); 906#L224-1 ~mode5~0 := 0; 973#L221-2 havoc node6_#t~ite17, node6_#t~ite18, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 918#L255 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 919#L258 assume !(node6_~m6~0 != ~nomsg~0); 909#L258-1 ~mode6~0 := 0; 910#L255-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 890#L461 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 891#L462 assume ~r1~0 < 6;check_~tmp~1 := 1; 962#L461-1 check_#res := check_~tmp~1; 963#L473 main_#t~ret51 := check_#res;main_~c1~0 := main_#t~ret51;havoc main_#t~ret51;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1005#L562 assume !(0 == assert_~arg % 256); 1006#L557 main_#t~post52 := main_~i2~0;main_~i2~0 := 1 + main_#t~post52;havoc main_#t~post52; 1009#L529-2 [2021-11-02 23:14:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1766357374, now seen corresponding path program 2 times [2021-11-02 23:14:43,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:43,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278130521] [2021-11-02 23:14:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:43,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,491 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:14:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:14:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 911844111, now seen corresponding path program 1 times [2021-11-02 23:14:43,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:43,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683152984] [2021-11-02 23:14:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:43,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,588 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:14:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:14:43,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:14:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:43,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1786874990, now seen corresponding path program 1 times [2021-11-02 23:14:43,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:14:43,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689662067] [2021-11-02 23:14:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:14:43,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:14:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:43,684 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 23:14:43,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:14:43,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689662067] [2021-11-02 23:14:43,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689662067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:14:43,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:43,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:14:43,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396856108] [2021-11-02 23:14:45,149 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:14:45,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:14:45,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:14:45,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:14:45,157 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:14:45,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:45,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:14:45,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:14:45,160 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-11-02 23:14:45,160 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:14:45,160 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:14:45,199 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 23:14:45,209 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 23:14:45,212 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 23:14:45,215 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 23:14:45,218 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 23:14:45,220 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 23:14:45,224 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 23:14:45,226 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 23:14:45,232 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 23:14:45,249 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 23:14:45,255 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 23:14:45,257 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 23:14:45,261 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 23:14:45,319 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 23:14:45,322 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 23:14:45,327 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 23:14:45,331 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 23:14:45,337 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 23:14:45,339 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 23:14:45,345 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 23:14:45,352 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 23:14:45,357 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 23:14:45,360 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 23:14:45,363 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 23:14:45,366 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 23:14:45,369 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 23:14:46,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:14:46,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:14:46,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:46,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:46,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:46,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:14:46,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:14:46,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:14:46,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:46,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:46,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:46,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:46,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:14:46,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:14:46,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:14:46,338 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:14:46,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:46,344 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:14:46,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:14:46,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:14:46,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:14:46,345 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:14:46,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:46,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:14:46,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:14:46,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-11-02 23:14:46,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:14:46,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:14:46,349 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 23:14:46,354 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 23:14:46,356 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 23:14:46,358 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 23:14:46,359 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 23:14:46,361 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 23:14:46,364 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 23:14:46,368 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 23:14:46,373 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 23:14:46,386 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 23:14:46,391 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 23:14:46,393 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 23:14:46,396 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 23:14:46,398 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 23:14:46,403 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 23:14:46,405 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 23:14:46,409 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 23:14:46,411 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 23:14:46,416 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 23:14:46,421 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 23:14:46,425 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 23:14:46,428 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 23:14:46,429 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 23:14:46,431 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 23:14:46,439 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 23:14:46,440 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 23:14:47,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:14:47,147 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:14:47,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:14:47,166 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 23:14:47,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:14:47,220 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 23:14:47,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 23:14:47,271 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 23:14:47,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,314 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 23:14:47,316 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 23:14:47,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,364 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,372 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 23:14:47,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 23:14:47,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-02 23:14:47,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 23:14:47,417 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 23:14:47,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,449 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 23:14:47,452 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 23:14:47,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,482 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 23:14:47,483 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 23:14:47,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 23:14:47,519 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 23:14:47,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,526 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-02 23:14:47,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,529 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-02 23:14:47,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,578 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 23:14:47,580 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 23:14:47,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-02 23:14:47,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 23:14:47,635 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 23:14:47,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,664 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 23:14:47,670 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 23:14:47,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,703 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 23:14:47,710 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 23:14:47,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,774 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 23:14:47,780 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 23:14:47,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,817 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 23:14:47,819 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 23:14:47,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:14:47,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,859 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 23:14:47,861 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 23:14:47,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:14:47,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:14:47,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:14:47,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:14:47,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:14:47,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:14:47,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:14:47,890 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:14:47,920 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 23:14:47,920 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 23:14:47,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:14:47,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:47,928 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:14:47,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:14:47,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:14:47,932 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:14:47,932 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 23 Supporting invariants [] [2021-11-02 23:14:47,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 23:14:47,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:47,969 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:14:47,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:14:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:48,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:14:48,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:14:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:14:48,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:14:48,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:14:48,552 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 23:14:48,556 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 23:14:48,557 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 194 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 23:14:48,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 194 transitions. cyclomatic complexity: 56. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 231 states and 342 transitions. Complement of second has 4 states. [2021-11-02 23:14:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 23:14:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 23:14:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2021-11-02 23:14:48,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 47 letters. Loop has 31 letters. [2021-11-02 23:14:48,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:14:48,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 78 letters. Loop has 31 letters. [2021-11-02 23:14:48,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:14:48,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 47 letters. Loop has 62 letters. [2021-11-02 23:14:48,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:14:48,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 342 transitions. [2021-11-02 23:14:48,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:14:48,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 0 states and 0 transitions. [2021-11-02 23:14:48,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:14:48,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:14:48,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:14:48,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:14:48,657 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:14:48,657 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:14:48,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:14:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:14:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:14:48,658 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 23:14:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:14:48,658 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-02 23:14:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:14:48,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-02 23:14:48,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:14:48,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 23:14:48,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:14:48,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:14:48,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:14:48,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:14:48,659 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:14:48,660 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:14:48,660 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:14:48,660 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 23:14:48,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:14:48,660 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:14:48,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:14:48,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:14:48 BoogieIcfgContainer [2021-11-02 23:14:48,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:48,666 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:14:48,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:14:48,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:14:48,672 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:14:48,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:14:41" (3/4) ... [2021-11-02 23:14:48,679 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:14:48,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:14:48,681 INFO L168 Benchmark]: Toolchain (without parser) took 8167.88 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 53.3 MB in the beginning and 98.1 MB in the end (delta: -44.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:14:48,681 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:14:48,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.03 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 53.1 MB in the beginning and 81.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:48,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.99 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 78.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:48,689 INFO L168 Benchmark]: Boogie Preprocessor took 43.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 76.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:48,689 INFO L168 Benchmark]: RCFGBuilder took 849.39 ms. Allocated memory is still 111.1 MB. Free memory was 76.1 MB in the beginning and 49.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:48,690 INFO L168 Benchmark]: BuchiAutomizer took 6755.39 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 49.9 MB in the beginning and 99.0 MB in the end (delta: -49.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:14:48,690 INFO L168 Benchmark]: Witness Printer took 6.97 ms. Allocated memory is still 134.2 MB. Free memory is still 98.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:14:48,692 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 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 420.03 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 53.1 MB in the beginning and 81.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.99 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 78.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.67 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 76.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 849.39 ms. Allocated memory is still 111.1 MB. Free memory was 76.1 MB in the beginning and 49.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6755.39 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 49.9 MB in the beginning and 99.0 MB in the end (delta: -49.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.97 ms. Allocated memory is still 134.2 MB. Free memory is still 98.1 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 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 23 + -2 * i2 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 5.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 139 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 863 SDtfs, 343 SDslu, 1382 SDs, 0 SdLazy, 26 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital188 mio100 ax100 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:14:48,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb986c3-f5e7-44c0-b52b-a3718b1e2e1a/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE