./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt --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 a9e9e68a4ced07da63a78ebad1c2cc86cbb57dae ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:19:51,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:19:51,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:19:51,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:19:51,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:19:51,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:19:51,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:19:51,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:19:51,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:19:51,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:19:51,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:19:51,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:19:51,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:19:51,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:19:51,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:19:51,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:19:51,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:19:51,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:19:51,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:19:51,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:19:51,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:19:51,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:19:51,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:19:51,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:19:51,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:19:51,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:19:51,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:19:51,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:19:51,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:19:51,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:19:51,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:19:51,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:19:51,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:19:51,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:19:51,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:19:51,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:19:51,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:19:51,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:19:51,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:19:51,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:19:51,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:19:51,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:19:51,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:19:51,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:19:51,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:19:51,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:19:51,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:19:51,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:19:51,258 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:19:51,258 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:19:51,258 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:19:51,258 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:19:51,259 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:19:51,260 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:19:51,260 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:19:51,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:19:51,260 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:19:51,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:19:51,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:19:51,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:19:51,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:19:51,262 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:19:51,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:19:51,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:19:51,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:19:51,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:19:51,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:19:51,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:19:51,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:19:51,266 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:19:51,266 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_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9e9e68a4ced07da63a78ebad1c2cc86cbb57dae [2021-10-13 00:19:51,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:19:51,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:19:51,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:19:51,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:19:51,633 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:19:51,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/reducercommutativity/rangesum.i [2021-10-13 00:19:51,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/data/19df0da17/b85bd7104b3743dba33070f0c679f643/FLAGb1b9e5e01 [2021-10-13 00:19:52,267 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:19:52,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/sv-benchmarks/c/reducercommutativity/rangesum.i [2021-10-13 00:19:52,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/data/19df0da17/b85bd7104b3743dba33070f0c679f643/FLAGb1b9e5e01 [2021-10-13 00:19:52,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/data/19df0da17/b85bd7104b3743dba33070f0c679f643 [2021-10-13 00:19:52,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:19:52,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:19:52,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:52,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:19:52,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:19:52,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a546164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52, skipping insertion in model container [2021-10-13 00:19:52,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:19:52,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:19:52,859 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_50e796d1-3823-44e5-93cf-b2f063eeff89/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2021-10-13 00:19:52,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:52,869 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:19:52,894 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_50e796d1-3823-44e5-93cf-b2f063eeff89/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2021-10-13 00:19:52,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:52,911 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:19:52,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52 WrapperNode [2021-10-13 00:19:52,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:52,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:52,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:19:52,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:19:52,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:52,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:19:52,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:19:52,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:19:52,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:52,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:53,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:53,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:53,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:19:53,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:19:53,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:19:53,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:19:53,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (1/1) ... [2021-10-13 00:19:53,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:53,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:53,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:53,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:19:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:19:53,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:19:53,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:19:53,512 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-13 00:19:53,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:53 BoogieIcfgContainer [2021-10-13 00:19:53,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:19:53,515 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:19:53,515 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:19:53,518 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:19:53,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:53,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:19:52" (1/3) ... [2021-10-13 00:19:53,520 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f3b65ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:53, skipping insertion in model container [2021-10-13 00:19:53,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:53,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:52" (2/3) ... [2021-10-13 00:19:53,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f3b65ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:53, skipping insertion in model container [2021-10-13 00:19:53,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:53,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:53" (3/3) ... [2021-10-13 00:19:53,522 INFO L389 chiAutomizerObserver]: Analyzing ICFG rangesum.i [2021-10-13 00:19:53,564 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:19:53,564 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:19:53,564 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:19:53,564 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:19:53,565 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:19:53,565 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:19:53,565 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:19:53,565 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:19:53,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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) [2021-10-13 00:19:53,600 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:19:53,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:53,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:53,607 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:19:53,608 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:19:53,608 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:19:53,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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) [2021-10-13 00:19:53,612 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:19:53,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:53,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:53,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:19:53,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:19:53,619 INFO L791 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 9#L44true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 14#L18-3true [2021-10-13 00:19:53,619 INFO L793 eck$LassoCheckResult]: Loop: 14#L18-3true assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 13#L18-2true init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 14#L18-3true [2021-10-13 00:19:53,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:53,626 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-13 00:19:53,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:53,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525653573] [2021-10-13 00:19:53,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:53,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,758 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:53,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:53,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1379, now seen corresponding path program 1 times [2021-10-13 00:19:53,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:53,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391421014] [2021-10-13 00:19:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:53,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,824 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:53,839 INFO L82 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2021-10-13 00:19:53,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:53,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612100917] [2021-10-13 00:19:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:53,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,899 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:53,958 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:54,726 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:54,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:54,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:54,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:54,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:54,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:54,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:54,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:54,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration1_Lasso [2021-10-13 00:19:54,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:54,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:54,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:54,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:55,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:55,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:55,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,485 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 [2021-10-13 00:19:55,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:19:55,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,566 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 [2021-10-13 00:19:55,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:19:55,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,625 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 [2021-10-13 00:19:55,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:19:55,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,699 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 [2021-10-13 00:19:55,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:55,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:19:55,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:19:55,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,792 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 [2021-10-13 00:19:55,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:19:55,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,859 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 [2021-10-13 00:19:55,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:19:55,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,932 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 [2021-10-13 00:19:55,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:19:55,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:55,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:55,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:55,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:55,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:55,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:19:55,985 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 [2021-10-13 00:19:55,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:55,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:55,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:55,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:55,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:55,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:55,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:55,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:19:56,019 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 [2021-10-13 00:19:56,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:56,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:19:56,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 00:19:56,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,100 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:19:56,102 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 [2021-10-13 00:19:56,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,151 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:19:56,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:56,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,193 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:19:56,197 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 [2021-10-13 00:19:56,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:56,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:19:56,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,268 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:19:56,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:56,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-13 00:19:56,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,301 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:19:56,305 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 [2021-10-13 00:19:56,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,341 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:19:56,344 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 [2021-10-13 00:19:56,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,388 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:19:56,390 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 [2021-10-13 00:19:56,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-13 00:19:56,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,421 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:19:56,426 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 [2021-10-13 00:19:56,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:19:56,491 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 [2021-10-13 00:19:56,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,522 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,528 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 [2021-10-13 00:19:56,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:19:56,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,570 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:19:56,576 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 [2021-10-13 00:19:56,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:56,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:56,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:56,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:56,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,610 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:19:56,612 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 [2021-10-13 00:19:56,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:56,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:56,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:56,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:56,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:56,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:19:56,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:19:56,707 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-13 00:19:56,707 INFO L444 ModelExtractionUtils]: 15 out of 28 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-13 00:19:56,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:56,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:56,736 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:56,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:19:56,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:19:56,815 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:19:56,816 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:19:56,816 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_nondet_~i~0, ~N~0) = -1*ULTIMATE.start_init_nondet_~i~0 + 1*~N~0 Supporting invariants [] [2021-10-13 00:19:56,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:56,905 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 00:19:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:56,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:19:56,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:57,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:19:57,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:57,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:57,062 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 [2021-10-13 00:19:57,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:57,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 130 transitions. Complement of second has 7 states. [2021-10-13 00:19:57,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:19:57,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-10-13 00:19:57,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:19:57,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:57,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:19:57,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:57,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 00:19:57,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:57,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 130 transitions. [2021-10-13 00:19:57,219 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:57,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 23 states and 33 transitions. [2021-10-13 00:19:57,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:19:57,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-13 00:19:57,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 33 transitions. [2021-10-13 00:19:57,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:57,224 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-10-13 00:19:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 33 transitions. [2021-10-13 00:19:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-13 00:19:57,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 22 states have internal predecessors, (33), 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) [2021-10-13 00:19:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2021-10-13 00:19:57,249 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-10-13 00:19:57,249 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-10-13 00:19:57,249 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:19:57,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 33 transitions. [2021-10-13 00:19:57,250 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:57,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:57,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:57,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:19:57,251 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:19:57,252 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 209#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 217#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 218#L18-3 assume !(init_nondet_~i~0 < ~N~0); 202#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 203#L29-3 [2021-10-13 00:19:57,252 INFO L793 eck$LassoCheckResult]: Loop: 203#L29-3 assume !!(rangesum_~i~1 < ~N~0); 210#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 211#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 203#L29-3 [2021-10-13 00:19:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:57,253 INFO L82 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2021-10-13 00:19:57,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:57,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517558463] [2021-10-13 00:19:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:57,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:57,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:57,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517558463] [2021-10-13 00:19:57,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517558463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:19:57,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:19:57,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:19:57,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593771685] [2021-10-13 00:19:57,314 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:19:57,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:57,315 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2021-10-13 00:19:57,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:57,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112423571] [2021-10-13 00:19:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:57,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:57,325 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:57,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:57,387 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:57,387 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:57,387 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:57,387 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:57,387 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:57,388 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,388 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:57,388 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:57,388 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2021-10-13 00:19:57,388 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:57,388 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:57,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:57,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:57,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:57,434 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:57,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:57,444 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:57,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:19:57,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:57,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:57,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:57,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:57,519 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:57,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:57,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:57,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:19:57,800 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:57,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-13 00:19:57,804 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:57,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:57,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:57,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:57,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:57,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:57,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:57,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2021-10-13 00:19:57,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:57,805 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:57,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:57,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:57,849 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:57,850 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:57,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:57,851 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:57,860 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 [2021-10-13 00:19:57,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:57,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:57,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:57,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:57,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:57,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:19:57,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:57,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:57,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:19:57,896 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:19:57,896 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:19:57,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:57,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:57,898 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:57,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:19:57,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:19:57,900 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:19:57,900 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1, ~N~0) = -4*ULTIMATE.start_rangesum_~i~1 + 3*~N~0 Supporting invariants [] [2021-10-13 00:19:57,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:19:57,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:57,936 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:19:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:57,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:19:57,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:58,007 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:19:58,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:58,120 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:19:58,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:58,160 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 53 transitions. Complement of second has 9 states. [2021-10-13 00:19:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:19:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-13 00:19:58,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-13 00:19:58,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:58,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-13 00:19:58,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:58,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-13 00:19:58,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:58,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 53 transitions. [2021-10-13 00:19:58,171 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:58,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 46 transitions. [2021-10-13 00:19:58,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-13 00:19:58,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-13 00:19:58,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 46 transitions. [2021-10-13 00:19:58,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:19:58,179 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 46 transitions. [2021-10-13 00:19:58,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 46 transitions. [2021-10-13 00:19:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-10-13 00:19:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 28 states have internal predecessors, (43), 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) [2021-10-13 00:19:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2021-10-13 00:19:58,186 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 43 transitions. [2021-10-13 00:19:58,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:19:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:19:58,190 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:58,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:58,239 INFO L93 Difference]: Finished difference Result 30 states and 43 transitions. [2021-10-13 00:19:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:19:58,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 43 transitions. [2021-10-13 00:19:58,242 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:58,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 43 transitions. [2021-10-13 00:19:58,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-13 00:19:58,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-13 00:19:58,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 43 transitions. [2021-10-13 00:19:58,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:19:58,245 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions. [2021-10-13 00:19:58,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 43 transitions. [2021-10-13 00:19:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2021-10-13 00:19:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 28 states have internal predecessors, (42), 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) [2021-10-13 00:19:58,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2021-10-13 00:19:58,252 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-10-13 00:19:58,252 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-10-13 00:19:58,252 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:19:58,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2021-10-13 00:19:58,260 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:58,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:58,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:58,261 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:58,261 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:19:58,261 INFO L791 eck$LassoCheckResult]: Stem: 373#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 374#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 387#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 388#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 395#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 396#L18-3 assume !(init_nondet_~i~0 < ~N~0); 369#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 370#L29-3 assume !!(rangesum_~i~1 < ~N~0); 375#L30 [2021-10-13 00:19:58,261 INFO L793 eck$LassoCheckResult]: Loop: 375#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 376#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 393#L29-3 assume !!(rangesum_~i~1 < ~N~0); 375#L30 [2021-10-13 00:19:58,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:58,262 INFO L82 PathProgramCache]: Analyzing trace with hash 123162479, now seen corresponding path program 1 times [2021-10-13 00:19:58,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:58,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697352448] [2021-10-13 00:19:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:58,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:58,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697352448] [2021-10-13 00:19:58,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697352448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:58,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821239695] [2021-10-13 00:19:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:19:58,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:58,352 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:19:58,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 00:19:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:58,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:19:58,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:58,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:58,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821239695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:58,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:58,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-13 00:19:58,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527821796] [2021-10-13 00:19:58,519 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:19:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:58,520 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 1 times [2021-10-13 00:19:58,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:58,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734651054] [2021-10-13 00:19:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,533 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:58,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:19:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:19:58,679 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. cyclomatic complexity: 19 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:58,754 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2021-10-13 00:19:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:19:58,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 45 transitions. [2021-10-13 00:19:58,756 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:58,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 45 transitions. [2021-10-13 00:19:58,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-13 00:19:58,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-13 00:19:58,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2021-10-13 00:19:58,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:19:58,757 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 45 transitions. [2021-10-13 00:19:58,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2021-10-13 00:19:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-13 00:19:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2021-10-13 00:19:58,759 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2021-10-13 00:19:58,760 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2021-10-13 00:19:58,760 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:19:58,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 44 transitions. [2021-10-13 00:19:58,760 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:58,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:58,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:58,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:58,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:19:58,761 INFO L791 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 469#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 478#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 479#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 486#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 487#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 488#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 490#L18-3 assume !(init_nondet_~i~0 < ~N~0); 460#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 461#L29-3 assume !!(rangesum_~i~1 < ~N~0); 470#L30 [2021-10-13 00:19:58,761 INFO L793 eck$LassoCheckResult]: Loop: 470#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 471#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 484#L29-3 assume !!(rangesum_~i~1 < ~N~0); 470#L30 [2021-10-13 00:19:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1898228851, now seen corresponding path program 2 times [2021-10-13 00:19:58,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:58,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608529044] [2021-10-13 00:19:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:58,832 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 2 times [2021-10-13 00:19:58,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:58,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559507809] [2021-10-13 00:19:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,851 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:58,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:58,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:58,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1698716202, now seen corresponding path program 1 times [2021-10-13 00:19:58,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:58,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746526624] [2021-10-13 00:19:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:58,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:19:58,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:58,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746526624] [2021-10-13 00:19:58,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746526624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:19:58,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:19:58,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:19:58,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660726085] [2021-10-13 00:19:59,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:59,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:19:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:19:59,053 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:59,121 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-10-13 00:19:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:19:59,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-13 00:19:59,123 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:59,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 50 transitions. [2021-10-13 00:19:59,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-13 00:19:59,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-10-13 00:19:59,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2021-10-13 00:19:59,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:19:59,124 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-10-13 00:19:59,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2021-10-13 00:19:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-13 00:19:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 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) [2021-10-13 00:19:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-10-13 00:19:59,127 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-10-13 00:19:59,127 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-10-13 00:19:59,127 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:19:59,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2021-10-13 00:19:59,131 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:19:59,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:59,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:59,133 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:59,133 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:19:59,134 INFO L791 eck$LassoCheckResult]: Stem: 552#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 553#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 557#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 558#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 565#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 566#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 567#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 572#L18-3 assume !(init_nondet_~i~0 < ~N~0); 540#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 541#L29-3 assume !!(rangesum_~i~1 < ~N~0); 546#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 547#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 573#L29-3 assume !!(rangesum_~i~1 < ~N~0); 544#L30 [2021-10-13 00:19:59,135 INFO L793 eck$LassoCheckResult]: Loop: 544#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 545#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 570#L29-3 assume !!(rangesum_~i~1 < ~N~0); 544#L30 [2021-10-13 00:19:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:59,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1698718124, now seen corresponding path program 1 times [2021-10-13 00:19:59,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:59,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078620375] [2021-10-13 00:19:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:59,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:59,174 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:59,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:59,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:59,214 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 3 times [2021-10-13 00:19:59,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:59,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365281769] [2021-10-13 00:19:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:59,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:59,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:59,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1087986773, now seen corresponding path program 1 times [2021-10-13 00:19:59,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:59,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355622388] [2021-10-13 00:19:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:59,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:59,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:59,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355622388] [2021-10-13 00:19:59,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355622388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:59,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097324905] [2021-10-13 00:19:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:59,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:19:59,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:59,337 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:19:59,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 00:19:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:59,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:19:59,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:19:59,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097324905] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:59,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:59,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-13 00:19:59,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014899139] [2021-10-13 00:19:59,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:19:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:19:59,623 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 17 Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 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) [2021-10-13 00:19:59,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:59,936 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2021-10-13 00:19:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:19:59,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 104 transitions. [2021-10-13 00:19:59,938 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 15 [2021-10-13 00:19:59,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 70 states and 90 transitions. [2021-10-13 00:19:59,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2021-10-13 00:19:59,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-13 00:19:59,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 90 transitions. [2021-10-13 00:19:59,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:19:59,940 INFO L681 BuchiCegarLoop]: Abstraction has 70 states and 90 transitions. [2021-10-13 00:19:59,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 90 transitions. [2021-10-13 00:19:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2021-10-13 00:19:59,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3) internal successors, (78), 59 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) [2021-10-13 00:19:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2021-10-13 00:19:59,951 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 78 transitions. [2021-10-13 00:19:59,952 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 78 transitions. [2021-10-13 00:19:59,952 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:19:59,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 78 transitions. [2021-10-13 00:19:59,953 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:19:59,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:59,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:59,956 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:59,956 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:19:59,957 INFO L791 eck$LassoCheckResult]: Stem: 743#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 744#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 748#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 749#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 759#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 760#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 761#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 785#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 786#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 787#L18-3 assume !(init_nondet_~i~0 < ~N~0); 731#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 732#L29-3 assume !!(rangesum_~i~1 < ~N~0); 737#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 738#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 779#L29-3 assume !!(rangesum_~i~1 < ~N~0); 780#L30 [2021-10-13 00:19:59,957 INFO L793 eck$LassoCheckResult]: Loop: 780#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 782#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 781#L29-3 assume !!(rangesum_~i~1 < ~N~0); 780#L30 [2021-10-13 00:19:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash -154124210, now seen corresponding path program 2 times [2021-10-13 00:19:59,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:59,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999235417] [2021-10-13 00:19:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:59,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:59,979 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:00,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:00,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:00,008 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 4 times [2021-10-13 00:20:00,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:00,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038135792] [2021-10-13 00:20:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:00,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:00,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:00,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:00,035 INFO L82 PathProgramCache]: Analyzing trace with hash -194270775, now seen corresponding path program 2 times [2021-10-13 00:20:00,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:00,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459755663] [2021-10-13 00:20:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:00,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:00,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:20:00,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459755663] [2021-10-13 00:20:00,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459755663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:00,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881103410] [2021-10-13 00:20:00,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:20:00,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:20:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:00,245 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:20:00,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 00:20:00,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:20:00,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:20:00,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:20:00,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:00,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881103410] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:00,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:20:00,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-10-13 00:20:00,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027910786] [2021-10-13 00:20:00,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:20:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 00:20:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:20:00,663 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. cyclomatic complexity: 25 Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 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) [2021-10-13 00:20:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:20:01,170 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2021-10-13 00:20:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:20:01,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 89 transitions. [2021-10-13 00:20:01,172 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:20:01,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 73 states and 87 transitions. [2021-10-13 00:20:01,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-10-13 00:20:01,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-13 00:20:01,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 87 transitions. [2021-10-13 00:20:01,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:20:01,177 INFO L681 BuchiCegarLoop]: Abstraction has 73 states and 87 transitions. [2021-10-13 00:20:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 87 transitions. [2021-10-13 00:20:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-10-13 00:20:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 67 states have internal predecessors, (82), 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) [2021-10-13 00:20:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2021-10-13 00:20:01,190 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 82 transitions. [2021-10-13 00:20:01,190 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 82 transitions. [2021-10-13 00:20:01,190 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:20:01,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 82 transitions. [2021-10-13 00:20:01,191 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:20:01,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:01,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:01,193 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:20:01,193 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:20:01,193 INFO L791 eck$LassoCheckResult]: Stem: 966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 967#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 972#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 973#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 982#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 983#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 984#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1018#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1017#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1016#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1014#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 979#L29-3 assume !!(rangesum_~i~1 < ~N~0); 960#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 961#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1012#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1009#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1000#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 995#L29-3 assume !!(rangesum_~i~1 < ~N~0); 996#L30 [2021-10-13 00:20:01,193 INFO L793 eck$LassoCheckResult]: Loop: 996#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1011#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1008#L29-3 assume !!(rangesum_~i~1 < ~N~0); 996#L30 [2021-10-13 00:20:01,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:01,194 INFO L82 PathProgramCache]: Analyzing trace with hash -194268853, now seen corresponding path program 3 times [2021-10-13 00:20:01,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:01,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309887564] [2021-10-13 00:20:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:01,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:01,211 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:01,254 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:01,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:01,255 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 5 times [2021-10-13 00:20:01,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:01,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640371425] [2021-10-13 00:20:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:01,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:01,264 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:01,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:01,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2142422100, now seen corresponding path program 3 times [2021-10-13 00:20:01,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:01,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768741153] [2021-10-13 00:20:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:01,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:20:01,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:20:01,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768741153] [2021-10-13 00:20:01,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768741153] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:01,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329610153] [2021-10-13 00:20:01,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:20:01,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:20:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:01,385 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:20:01,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 00:20:01,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 00:20:01,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:20:01,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:20:01,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:01,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329610153] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:01,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:20:01,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2021-10-13 00:20:01,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535050173] [2021-10-13 00:20:01,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:20:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 00:20:01,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:20:01,765 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. cyclomatic complexity: 21 Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 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) [2021-10-13 00:20:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:20:02,140 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2021-10-13 00:20:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 00:20:02,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 141 transitions. [2021-10-13 00:20:02,141 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 17 [2021-10-13 00:20:02,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 104 states and 125 transitions. [2021-10-13 00:20:02,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2021-10-13 00:20:02,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-10-13 00:20:02,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 125 transitions. [2021-10-13 00:20:02,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:20:02,144 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 125 transitions. [2021-10-13 00:20:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 125 transitions. [2021-10-13 00:20:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2021-10-13 00:20:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.1978021978021978) internal successors, (109), 90 states have internal predecessors, (109), 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) [2021-10-13 00:20:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 109 transitions. [2021-10-13 00:20:02,151 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 109 transitions. [2021-10-13 00:20:02,151 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 109 transitions. [2021-10-13 00:20:02,151 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:20:02,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 109 transitions. [2021-10-13 00:20:02,152 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:20:02,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:02,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:02,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:20:02,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:20:02,155 INFO L791 eck$LassoCheckResult]: Stem: 1247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 1248#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1261#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1262#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1270#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1271#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1268#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1269#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1307#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1306#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1304#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1303#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1302#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1300#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1251#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1252#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1278#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1298#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1296#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1293#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1294#L30 [2021-10-13 00:20:02,157 INFO L793 eck$LassoCheckResult]: Loop: 1294#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1297#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1295#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1294#L30 [2021-10-13 00:20:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:02,157 INFO L82 PathProgramCache]: Analyzing trace with hash -326653975, now seen corresponding path program 4 times [2021-10-13 00:20:02,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:02,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174285440] [2021-10-13 00:20:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:02,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:02,178 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:02,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 6 times [2021-10-13 00:20:02,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:02,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995523708] [2021-10-13 00:20:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:02,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:02,215 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:02,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:02,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1047353422, now seen corresponding path program 4 times [2021-10-13 00:20:02,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:02,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346871100] [2021-10-13 00:20:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:02,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 00:20:02,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:20:02,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346871100] [2021-10-13 00:20:02,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346871100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:02,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940190517] [2021-10-13 00:20:02,332 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:20:02,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:20:02,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:02,340 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:20:02,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 00:20:02,443 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:20:02,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:20:02,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:20:02,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:02,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940190517] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:20:02,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:20:02,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2021-10-13 00:20:02,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053010115] [2021-10-13 00:20:02,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:20:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:20:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-10-13 00:20:02,830 INFO L87 Difference]: Start difference. First operand 91 states and 109 transitions. cyclomatic complexity: 25 Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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) [2021-10-13 00:20:03,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:20:03,612 INFO L93 Difference]: Finished difference Result 164 states and 191 transitions. [2021-10-13 00:20:03,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 00:20:03,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 191 transitions. [2021-10-13 00:20:03,619 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 23 [2021-10-13 00:20:03,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 158 states and 185 transitions. [2021-10-13 00:20:03,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2021-10-13 00:20:03,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2021-10-13 00:20:03,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 185 transitions. [2021-10-13 00:20:03,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:20:03,622 INFO L681 BuchiCegarLoop]: Abstraction has 158 states and 185 transitions. [2021-10-13 00:20:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 185 transitions. [2021-10-13 00:20:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 139. [2021-10-13 00:20:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.1870503597122302) internal successors, (165), 138 states have internal predecessors, (165), 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) [2021-10-13 00:20:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 165 transitions. [2021-10-13 00:20:03,631 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 165 transitions. [2021-10-13 00:20:03,631 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 165 transitions. [2021-10-13 00:20:03,631 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:20:03,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 165 transitions. [2021-10-13 00:20:03,633 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 21 [2021-10-13 00:20:03,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:03,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:03,634 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2021-10-13 00:20:03,634 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:20:03,634 INFO L791 eck$LassoCheckResult]: Stem: 1643#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 1644#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1648#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1649#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1658#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1714#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1713#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1711#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1712#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1729#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1730#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1740#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1656#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1657#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1631#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1632#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1738#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1737#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1654#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1655#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1735#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1736#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1682#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1679#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1675#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1678#L30 [2021-10-13 00:20:03,635 INFO L793 eck$LassoCheckResult]: Loop: 1678#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2);call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1715#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1716#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1678#L30 [2021-10-13 00:20:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash -185017358, now seen corresponding path program 5 times [2021-10-13 00:20:03,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:03,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244457360] [2021-10-13 00:20:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:03,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:03,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:03,690 INFO L82 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 7 times [2021-10-13 00:20:03,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:03,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668550577] [2021-10-13 00:20:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:03,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,696 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:03,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1409041499, now seen corresponding path program 5 times [2021-10-13 00:20:03,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:03,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825117904] [2021-10-13 00:20:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:03,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:03,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:05,252 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:20:05,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:20:05,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:20:05,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:20:05,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:20:05,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:05,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:20:05,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:20:05,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration9_Lasso [2021-10-13 00:20:05,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:20:05,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:20:05,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:05,915 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:20:05,915 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:20:05,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:05,917 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:05,918 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 [2021-10-13 00:20:05,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:20:05,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:05,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:05,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:05,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:05,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:05,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:05,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:05,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:05,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:05,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:05,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:05,958 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:05,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:20:05,959 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 [2021-10-13 00:20:05,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:05,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:05,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:05,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:05,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:05,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:05,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:05,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:05,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:05,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:05,998 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:05,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:20:05,999 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 [2021-10-13 00:20:06,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 00:20:06,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,040 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,041 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 [2021-10-13 00:20:06,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:20:06,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:06,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,088 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:20:06,090 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 [2021-10-13 00:20:06,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 00:20:06,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,166 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:20:06,178 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 [2021-10-13 00:20:06,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:06,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,214 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,215 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 [2021-10-13 00:20:06,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:20:06,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 00:20:06,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,279 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:20:06,283 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 [2021-10-13 00:20:06,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:06,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,318 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,319 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 [2021-10-13 00:20:06,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:20:06,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:06,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:06,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:06,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:06,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:06,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,355 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:20:06,357 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 [2021-10-13 00:20:06,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:06,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:06,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:06,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:06,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:06,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:06,393 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:20:06,421 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-13 00:20:06,421 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-13 00:20:06,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:06,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:06,423 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:06,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:20:06,424 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:20:06,432 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:20:06,432 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:20:06,433 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1, ~N~0) = -1*ULTIMATE.start_rangesum_~i~1 + 1*~N~0 Supporting invariants [] [2021-10-13 00:20:06,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-13 00:20:06,480 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 00:20:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:06,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:20:06,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:06,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:20:06,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:06,636 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 [2021-10-13 00:20:06,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-13 00:20:06,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 178 states and 215 transitions. Complement of second has 7 states. [2021-10-13 00:20:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:20:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-13 00:20:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 00:20:06,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-13 00:20:06,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:06,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 28 letters. Loop has 3 letters. [2021-10-13 00:20:06,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:06,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 6 letters. [2021-10-13 00:20:06,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:06,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 215 transitions. [2021-10-13 00:20:06,676 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2021-10-13 00:20:06,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 148 states and 176 transitions. [2021-10-13 00:20:06,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2021-10-13 00:20:06,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2021-10-13 00:20:06,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 176 transitions. [2021-10-13 00:20:06,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:20:06,678 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 176 transitions. [2021-10-13 00:20:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 176 transitions. [2021-10-13 00:20:06,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2021-10-13 00:20:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.1971830985915493) internal successors, (170), 141 states have internal predecessors, (170), 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) [2021-10-13 00:20:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2021-10-13 00:20:06,686 INFO L704 BuchiCegarLoop]: Abstraction has 142 states and 170 transitions. [2021-10-13 00:20:06,686 INFO L587 BuchiCegarLoop]: Abstraction has 142 states and 170 transitions. [2021-10-13 00:20:06,686 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:20:06,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 170 transitions. [2021-10-13 00:20:06,687 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2021-10-13 00:20:06,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:06,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:06,689 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:20:06,689 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:20:06,689 INFO L791 eck$LassoCheckResult]: Stem: 2113#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11);~N~0 := 0; 2114#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2118#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 2119#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2128#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2173#L18-3 assume !!(init_nondet_~i~0 < ~N~0);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2172#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2170#L18-3 assume !(init_nondet_~i~0 < ~N~0); 2169#L16 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2168#L29-3 assume !!(rangesum_~i~1 < ~N~0); 2167#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2166#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2165#L29-3 assume !!(rangesum_~i~1 < ~N~0); 2164#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2163#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2161#L29-3 assume !(rangesum_~i~1 < ~N~0); 2159#L29-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 2157#L38 main_#t~ret8 := rangesum_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2155#L29-8 assume !!(rangesum_~i~1 < ~N~0); 2153#L30-2 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2151#L29-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2149#L29-8 assume !!(rangesum_~i~1 < ~N~0); 2147#L30-2 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2146#L29-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2141#L29-8 assume !(rangesum_~i~1 < ~N~0); 2140#L29-9 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 2109#L38-1 main_#t~ret11 := rangesum_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~2 := 0; 2110#L57-3 [2021-10-13 00:20:06,689 INFO L793 eck$LassoCheckResult]: Loop: 2110#L57-3 assume !!(main_~i~2 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem14; 2121#L57-2 main_#t~post13 := main_~i~2;main_~i~2 := 1 + main_#t~post13;havoc main_#t~post13; 2110#L57-3 [2021-10-13 00:20:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1751120697, now seen corresponding path program 1 times [2021-10-13 00:20:06,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:06,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104644899] [2021-10-13 00:20:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:06,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:06,756 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:06,773 INFO L82 PathProgramCache]: Analyzing trace with hash 3427, now seen corresponding path program 1 times [2021-10-13 00:20:06,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:06,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633812055] [2021-10-13 00:20:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:06,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,781 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:06,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:06,781 INFO L82 PathProgramCache]: Analyzing trace with hash 800192681, now seen corresponding path program 1 times [2021-10-13 00:20:06,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:06,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095491758] [2021-10-13 00:20:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:06,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,795 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:06,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:08,281 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:20:08,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:20:08,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:20:08,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:20:08,282 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:20:08,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:08,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:20:08,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:20:08,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration10_Lasso [2021-10-13 00:20:08,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:20:08,282 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:20:08,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:08,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:08,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:08,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:08,425 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 00:20:08,429 INFO L168 Benchmark]: Toolchain (without parser) took 15789.53 ms. Allocated memory was 88.1 MB in the beginning and 161.5 MB in the end (delta: 73.4 MB). Free memory was 46.0 MB in the beginning and 93.7 MB in the end (delta: -47.6 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,430 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:20:08,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.55 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 45.8 MB in the beginning and 79.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 109.1 MB. Free memory was 79.2 MB in the beginning and 77.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,431 INFO L168 Benchmark]: Boogie Preprocessor took 44.85 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,432 INFO L168 Benchmark]: RCFGBuilder took 507.55 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 79.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,432 INFO L168 Benchmark]: BuchiAutomizer took 14912.66 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 79.1 MB in the beginning and 93.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 96.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:20:08,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.55 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 45.8 MB in the beginning and 79.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 109.1 MB. Free memory was 79.2 MB in the beginning and 77.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.85 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 507.55 ms. Allocated memory is still 109.1 MB. Free memory was 76.0 MB in the beginning and 79.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14912.66 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 79.1 MB in the beginning and 93.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 96.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:20:08,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:08,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-13 00:20:08,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:09,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-13 00:20:09,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:09,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e796d1-3823-44e5-93cf-b2f063eeff89/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...