./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.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_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/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_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/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_1be78c67-2569-4785-861c-f38f3ff44212/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 0bbcd29b379466a58e055ac550736cd77ce56d9c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/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 00:23:48,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:23:48,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:23:48,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:23:48,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:23:48,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:23:48,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:23:48,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:23:48,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:23:48,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:23:48,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:23:48,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:23:48,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:23:48,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:23:48,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:23:48,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:23:48,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:23:48,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:23:48,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:23:48,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:23:48,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:23:48,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:23:48,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:23:48,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:23:48,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:23:48,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:23:48,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:23:48,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:23:48,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:23:48,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:23:48,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:23:48,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:23:48,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:23:48,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:23:48,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:23:48,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:23:48,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:23:48,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:23:48,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:23:48,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:23:48,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:23:48,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:23:48,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:23:48,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:23:48,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:23:48,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:23:48,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:23:48,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:23:48,522 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:23:48,522 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:23:48,522 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:23:48,522 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:23:48,523 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:23:48,523 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:23:48,523 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:23:48,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:23:48,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:23:48,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:23:48,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:23:48,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:23:48,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:23:48,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:23:48,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:23:48,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:23:48,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:23:48,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:23:48,526 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:23:48,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:23:48,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:23:48,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:23:48,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:23:48,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:23:48,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:23:48,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:23:48,529 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:23:48,529 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_1be78c67-2569-4785-861c-f38f3ff44212/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbcd29b379466a58e055ac550736cd77ce56d9c [2021-10-13 00:23:48,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:23:48,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:23:48,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:23:48,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:23:48,780 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:23:48,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-10-13 00:23:48,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/data/f0e09b50d/3a6cf1318cb04b52af36c3d8251bdc1c/FLAGcb2bc5cd3 [2021-10-13 00:23:49,379 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:23:49,380 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-10-13 00:23:49,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/data/f0e09b50d/3a6cf1318cb04b52af36c3d8251bdc1c/FLAGcb2bc5cd3 [2021-10-13 00:23:49,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/data/f0e09b50d/3a6cf1318cb04b52af36c3d8251bdc1c [2021-10-13 00:23:49,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:23:49,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:23:49,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:23:49,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:23:49,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:23:49,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:49,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de344cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49, skipping insertion in model container [2021-10-13 00:23:49,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:49,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:23:49,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:23:49,935 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_1be78c67-2569-4785-861c-f38f3ff44212/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-10-13 00:23:49,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:23:49,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:23:49,972 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_1be78c67-2569-4785-861c-f38f3ff44212/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-10-13 00:23:49,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:23:49,989 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:23:49,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49 WrapperNode [2021-10-13 00:23:49,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:23:49,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:23:49,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:23:49,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:23:50,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:23:50,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:23:50,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:23:50,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:23:50,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:23:50,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:23:50,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:23:50,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:23:50,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (1/1) ... [2021-10-13 00:23:50,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:50,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:50,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:50,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:23:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:23:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:23:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:23:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:23:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:23:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:23:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:23:50,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:23:50,690 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-13 00:23:50,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:50 BoogieIcfgContainer [2021-10-13 00:23:50,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:23:50,698 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:23:50,699 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:23:50,702 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:23:50,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:23:50,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:23:49" (1/3) ... [2021-10-13 00:23:50,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369a610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:23:50, skipping insertion in model container [2021-10-13 00:23:50,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:23:50,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:49" (2/3) ... [2021-10-13 00:23:50,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369a610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:23:50, skipping insertion in model container [2021-10-13 00:23:50,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:23:50,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:50" (3/3) ... [2021-10-13 00:23:50,709 INFO L389 chiAutomizerObserver]: Analyzing ICFG rangesum05.i [2021-10-13 00:23:50,792 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:23:50,792 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:23:50,792 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:23:50,793 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:23:50,793 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:23:50,793 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:23:50,793 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:23:50,793 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:23:50,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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 00:23:50,834 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:23:50,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:50,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:50,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:23:50,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:23:50,841 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:23:50,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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 00:23:50,845 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-13 00:23:50,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:50,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:50,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:23:50,846 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:23:50,854 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 7#L-1true havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 22#L17-3true [2021-10-13 00:23:50,854 INFO L793 eck$LassoCheckResult]: Loop: 22#L17-3true assume !!(init_nondet_~i~0 < 5);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; 11#L17-2true init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 22#L17-3true [2021-10-13 00:23:50,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:50,861 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:23:50,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:50,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444126550] [2021-10-13 00:23:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:50,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:50,990 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:51,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:51,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:51,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-13 00:23:51,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:51,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973241239] [2021-10-13 00:23:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:51,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:51,055 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:51,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:51,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:51,072 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-13 00:23:51,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:51,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351931561] [2021-10-13 00:23:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:51,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:51,126 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:51,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:52,011 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:23:52,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:23:52,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:23:52,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:23:52,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:23:52,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:23:52,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:23:52,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration1_Lasso [2021-10-13 00:23:52,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:23:52,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:23:52,033 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 00:23:52,039 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 00:23:52,041 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 00:23:52,043 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 00:23:52,047 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 00:23:52,049 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 00:23:52,288 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 00:23:52,291 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 00:23:52,294 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 00:23:52,298 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 00:23:52,301 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 00:23:52,304 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 00:23:52,307 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 00:23:52,309 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 00:23:52,312 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 00:23:52,314 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 00:23:52,317 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 00:23:52,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:23:52,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:23:52,623 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:23:52,628 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:23:52,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:23:52,638 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 00:23:52,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:52,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:52,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:52,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:52,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:52,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:52,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:52,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:52,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:52,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:23:52,700 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 00:23:52,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:52,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:52,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:52,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:52,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:52,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:52,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:52,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:52,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:52,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:23:52,769 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 00:23:52,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:52,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:52,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:52,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:52,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:52,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:52,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:52,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:52,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-13 00:23:52,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:23:52,845 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 00:23:52,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:52,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:52,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:52,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:52,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:23:52,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:23:52,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:52,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:52,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,930 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 00:23:52,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:52,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:52,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:52,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:52,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:52,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:52,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:52,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:23:52,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:52,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-13 00:23:52,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:52,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:52,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:52,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:23:52,996 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 00:23:53,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:53,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:53,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:53,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:53,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:53,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:53,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:53,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:53,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:53,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:53,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:53,065 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:53,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:23:53,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:23:53,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:53,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:53,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:53,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:53,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:23:53,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:23:53,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:53,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:53,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:53,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:53,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:53,158 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 00:23:53,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:53,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:53,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:53,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:53,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:23:53,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:23:53,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:23:53,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:23:53,239 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-13 00:23:53,239 INFO L444 ModelExtractionUtils]: 15 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-13 00:23:53,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:53,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:53,255 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:53,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:23:53,282 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:23:53,336 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:23:53,336 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:23:53,337 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_nondet_~i~0, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1) = -8*ULTIMATE.start_init_nondet_~i~0 + 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 Supporting invariants [] [2021-10-13 00:23:53,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:53,420 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 00:23:53,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:53,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:23:53,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:53,506 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:23:53,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:53,560 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 00:23:53,577 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 00:23:53,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 00:23:53,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 75 states and 119 transitions. Complement of second has 8 states. [2021-10-13 00:23:53,733 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 00:23:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 00:23:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-10-13 00:23:53,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:23:53,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:23:53,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:23:53,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:23:53,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 00:23:53,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:23:53,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 119 transitions. [2021-10-13 00:23:53,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:23:53,754 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:53,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 32 transitions. [2021-10-13 00:23:53,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-13 00:23:53,760 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:53,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 32 transitions. [2021-10-13 00:23:53,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:53,761 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-13 00:23:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 32 transitions. [2021-10-13 00:23:53,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-13 00:23:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 21 states have internal predecessors, (32), 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 00:23:53,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2021-10-13 00:23:53,792 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-13 00:23:53,792 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-13 00:23:53,792 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:23:53,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 32 transitions. [2021-10-13 00:23:53,794 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:53,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:53,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:53,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:23:53,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:53,795 INFO L791 eck$LassoCheckResult]: Stem: 192#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 193#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 204#L17-3 assume !(init_nondet_~i~0 < 5); 201#L15 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; 202#L28-3 [2021-10-13 00:23:53,795 INFO L793 eck$LassoCheckResult]: Loop: 202#L28-3 assume !!(rangesum_~i~1 < 5); 199#L29 assume rangesum_~i~1 > 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; 200#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 202#L28-3 [2021-10-13 00:23:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:53,796 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-13 00:23:53,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:53,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348457224] [2021-10-13 00:23:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:53,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:53,846 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 00:23:53,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:53,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348457224] [2021-10-13 00:23:53,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348457224] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:23:53,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:23:53,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:23:53,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630671068] [2021-10-13 00:23:53,851 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:23:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:53,852 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2021-10-13 00:23:53,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:53,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211101069] [2021-10-13 00:23:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:53,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:53,860 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:53,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:53,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:23:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:23:53,939 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 00:23:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:53,960 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-10-13 00:23:53,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:23:53,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2021-10-13 00:23:53,962 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:53,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 32 transitions. [2021-10-13 00:23:53,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:23:53,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:53,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2021-10-13 00:23:53,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:53,963 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2021-10-13 00:23:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2021-10-13 00:23:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-13 00:23:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 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 00:23:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2021-10-13 00:23:53,966 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-13 00:23:53,966 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-13 00:23:53,967 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:23:53,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2021-10-13 00:23:53,968 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:53,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:53,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:53,968 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:23:53,968 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:53,969 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 244#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 255#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 256#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 257#L17-3 assume !(init_nondet_~i~0 < 5); 250#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 251#L28-3 [2021-10-13 00:23:53,969 INFO L793 eck$LassoCheckResult]: Loop: 251#L28-3 assume !!(rangesum_~i~1 < 5); 252#L29 assume rangesum_~i~1 > 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; 253#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 251#L28-3 [2021-10-13 00:23:53,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:53,969 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-13 00:23:53,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:53,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874322343] [2021-10-13 00:23:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:53,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:54,008 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 00:23:54,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:54,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874322343] [2021-10-13 00:23:54,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874322343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426189362] [2021-10-13 00:23:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:54,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:54,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:54,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 00:23:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:54,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:23:54,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:54,114 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 00:23:54,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426189362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:54,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 00:23:54,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287963459] [2021-10-13 00:23:54,116 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:23:54,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:54,116 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2021-10-13 00:23:54,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:54,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269435509] [2021-10-13 00:23:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,135 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:54,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:54,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:23:54,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:23:54,239 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:23:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:54,264 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-10-13 00:23:54,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:23:54,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2021-10-13 00:23:54,269 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:54,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 34 transitions. [2021-10-13 00:23:54,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:23:54,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:54,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2021-10-13 00:23:54,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:54,272 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-13 00:23:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2021-10-13 00:23:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-13 00:23:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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 00:23:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-10-13 00:23:54,277 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-13 00:23:54,279 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-13 00:23:54,279 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:23:54,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-10-13 00:23:54,283 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:54,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:54,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:54,285 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-13 00:23:54,285 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:54,285 INFO L791 eck$LassoCheckResult]: Stem: 313#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 314#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 325#L17-3 assume !!(init_nondet_~i~0 < 5);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; 326#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 327#L17-3 assume !!(init_nondet_~i~0 < 5);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; 328#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 336#L17-3 assume !(init_nondet_~i~0 < 5); 320#L15 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; 321#L28-3 [2021-10-13 00:23:54,286 INFO L793 eck$LassoCheckResult]: Loop: 321#L28-3 assume !!(rangesum_~i~1 < 5); 322#L29 assume rangesum_~i~1 > 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; 323#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 321#L28-3 [2021-10-13 00:23:54,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:54,286 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-13 00:23:54,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:54,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117461344] [2021-10-13 00:23:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:54,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:54,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117461344] [2021-10-13 00:23:54,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117461344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503112994] [2021-10-13 00:23:54,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:23:54,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:54,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:54,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:54,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 00:23:54,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:23:54,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:23:54,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:23:54,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:54,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503112994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:54,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 00:23:54,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523308469] [2021-10-13 00:23:54,500 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:23:54,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:54,500 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2021-10-13 00:23:54,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:54,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91877970] [2021-10-13 00:23:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,512 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:54,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:23:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:23:54,595 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 14 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 00:23:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:54,624 INFO L93 Difference]: Finished difference Result 27 states and 36 transitions. [2021-10-13 00:23:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:23:54,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-13 00:23:54,629 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:54,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 36 transitions. [2021-10-13 00:23:54,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:23:54,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:54,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-13 00:23:54,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:54,632 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-13 00:23:54,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-13 00:23:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-13 00:23:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 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 00:23:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-10-13 00:23:54,637 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-10-13 00:23:54,637 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-10-13 00:23:54,637 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:23:54,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2021-10-13 00:23:54,638 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:54,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:54,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:54,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-13 00:23:54,639 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:54,640 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 395#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 407#L17-3 assume !!(init_nondet_~i~0 < 5);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; 408#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 409#L17-3 assume !!(init_nondet_~i~0 < 5);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; 410#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 419#L17-3 assume !!(init_nondet_~i~0 < 5);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; 418#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 417#L17-3 assume !(init_nondet_~i~0 < 5); 401#L15 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; 402#L28-3 [2021-10-13 00:23:54,640 INFO L793 eck$LassoCheckResult]: Loop: 402#L28-3 assume !!(rangesum_~i~1 < 5); 403#L29 assume rangesum_~i~1 > 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; 404#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 402#L28-3 [2021-10-13 00:23:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:54,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-13 00:23:54,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:54,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684955967] [2021-10-13 00:23:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:54,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:54,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684955967] [2021-10-13 00:23:54,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684955967] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673699097] [2021-10-13 00:23:54,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:23:54,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:54,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:54,731 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:54,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 00:23:54,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 00:23:54,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:23:54,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:23:54,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:54,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673699097] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:54,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:54,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-13 00:23:54,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733495353] [2021-10-13 00:23:54,850 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:23:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:54,851 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2021-10-13 00:23:54,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:54,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459939474] [2021-10-13 00:23:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:54,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,869 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:54,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:54,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:23:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:23:54,974 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 00:23:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:55,013 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2021-10-13 00:23:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:23:55,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-10-13 00:23:55,015 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 38 transitions. [2021-10-13 00:23:55,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:23:55,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:55,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-10-13 00:23:55,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:55,021 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-13 00:23:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-10-13 00:23:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-13 00:23:55,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 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 00:23:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-13 00:23:55,033 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-13 00:23:55,033 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-13 00:23:55,033 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:23:55,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-10-13 00:23:55,037 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:55,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:55,038 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-13 00:23:55,038 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:55,039 INFO L791 eck$LassoCheckResult]: Stem: 486#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 487#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 498#L17-3 assume !!(init_nondet_~i~0 < 5);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; 499#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 500#L17-3 assume !!(init_nondet_~i~0 < 5);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; 501#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 506#L17-3 assume !!(init_nondet_~i~0 < 5);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; 513#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 512#L17-3 assume !!(init_nondet_~i~0 < 5);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; 511#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 510#L17-3 assume !(init_nondet_~i~0 < 5); 493#L15 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; 494#L28-3 [2021-10-13 00:23:55,039 INFO L793 eck$LassoCheckResult]: Loop: 494#L28-3 assume !!(rangesum_~i~1 < 5); 495#L29 assume rangesum_~i~1 > 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; 496#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 494#L28-3 [2021-10-13 00:23:55,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,040 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-13 00:23:55,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702997448] [2021-10-13 00:23:55,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:55,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:55,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702997448] [2021-10-13 00:23:55,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702997448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:55,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75726969] [2021-10-13 00:23:55,143 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:23:55,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:55,148 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:55,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 00:23:55,218 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:23:55,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:23:55,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:23:55,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:55,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:23:55,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75726969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:55,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:55,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-13 00:23:55,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528597283] [2021-10-13 00:23:55,283 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:23:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,284 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2021-10-13 00:23:55,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631741611] [2021-10-13 00:23:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,290 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:55,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:55,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:23:55,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:23:55,400 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:23:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:55,435 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-13 00:23:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:23:55,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-10-13 00:23:55,439 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 39 transitions. [2021-10-13 00:23:55,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:23:55,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:23:55,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2021-10-13 00:23:55,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:55,442 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-13 00:23:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2021-10-13 00:23:55,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-13 00:23:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:23:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-10-13 00:23:55,448 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-13 00:23:55,448 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-13 00:23:55,448 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:23:55,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-10-13 00:23:55,450 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:55,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:55,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-13 00:23:55,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:55,452 INFO L791 eck$LassoCheckResult]: Stem: 588#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 589#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 601#L17-3 assume !!(init_nondet_~i~0 < 5);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; 602#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 603#L17-3 assume !!(init_nondet_~i~0 < 5);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; 604#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 617#L17-3 assume !!(init_nondet_~i~0 < 5);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; 616#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 615#L17-3 assume !!(init_nondet_~i~0 < 5);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; 614#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 613#L17-3 assume !!(init_nondet_~i~0 < 5);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; 612#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 611#L17-3 assume !(init_nondet_~i~0 < 5); 595#L15 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; 596#L28-3 [2021-10-13 00:23:55,452 INFO L793 eck$LassoCheckResult]: Loop: 596#L28-3 assume !!(rangesum_~i~1 < 5); 597#L29 assume rangesum_~i~1 > 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; 598#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 596#L28-3 [2021-10-13 00:23:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-13 00:23:55,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939370710] [2021-10-13 00:23:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,515 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2021-10-13 00:23:55,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860119127] [2021-10-13 00:23:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,521 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:55,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2021-10-13 00:23:55,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572000391] [2021-10-13 00:23:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:55,559 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 00:23:55,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:55,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572000391] [2021-10-13 00:23:55,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572000391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:23:55,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:23:55,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:23:55,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717327449] [2021-10-13 00:23:55,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:23:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:23:55,639 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:23:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:55,728 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-10-13 00:23:55,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:23:55,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2021-10-13 00:23:55,730 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2021-10-13 00:23:55,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 00:23:55,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-13 00:23:55,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-10-13 00:23:55,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:55,732 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-10-13 00:23:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-10-13 00:23:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-13 00:23:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 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 00:23:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-10-13 00:23:55,735 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-10-13 00:23:55,735 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-10-13 00:23:55,735 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:23:55,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2021-10-13 00:23:55,735 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:55,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:55,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:55,736 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-13 00:23:55,736 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:55,737 INFO L791 eck$LassoCheckResult]: Stem: 665#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 666#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 679#L17-3 assume !!(init_nondet_~i~0 < 5);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; 680#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 681#L17-3 assume !!(init_nondet_~i~0 < 5);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; 682#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 699#L17-3 assume !!(init_nondet_~i~0 < 5);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; 698#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 697#L17-3 assume !!(init_nondet_~i~0 < 5);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; 696#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 693#L17-3 assume !!(init_nondet_~i~0 < 5);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; 692#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 691#L17-3 assume !(init_nondet_~i~0 < 5); 673#L15 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; 674#L28-3 assume !!(rangesum_~i~1 < 5); 671#L29 assume !(rangesum_~i~1 > 2); 672#L28-2 [2021-10-13 00:23:55,737 INFO L793 eck$LassoCheckResult]: Loop: 672#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 675#L28-3 assume !!(rangesum_~i~1 < 5); 695#L29 assume rangesum_~i~1 > 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; 672#L28-2 [2021-10-13 00:23:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1715425498, now seen corresponding path program 1 times [2021-10-13 00:23:55,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229760756] [2021-10-13 00:23:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,752 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,773 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 7 times [2021-10-13 00:23:55,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445660242] [2021-10-13 00:23:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,778 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:55,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1574813624, now seen corresponding path program 1 times [2021-10-13 00:23:55,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:55,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720077392] [2021-10-13 00:23:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 00:23:55,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:55,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720077392] [2021-10-13 00:23:55,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720077392] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:55,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810217513] [2021-10-13 00:23:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:55,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:55,884 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:55,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 00:23:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:56,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:23:56,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 00:23:56,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810217513] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:56,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:56,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-13 00:23:56,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234806888] [2021-10-13 00:23:56,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:56,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:23:56,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:23:56,182 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. cyclomatic complexity: 14 Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:23:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:56,272 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-13 00:23:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:23:56,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2021-10-13 00:23:56,275 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:56,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2021-10-13 00:23:56,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-10-13 00:23:56,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-13 00:23:56,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2021-10-13 00:23:56,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:56,279 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-10-13 00:23:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2021-10-13 00:23:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-10-13 00:23:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.2) internal successors, (54), 44 states have internal predecessors, (54), 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 00:23:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2021-10-13 00:23:56,286 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-13 00:23:56,286 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-13 00:23:56,286 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:23:56,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 54 transitions. [2021-10-13 00:23:56,287 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:56,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:56,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:56,288 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:23:56,289 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:56,291 INFO L791 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 814#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 826#L17-3 assume !!(init_nondet_~i~0 < 5);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; 827#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 828#L17-3 assume !!(init_nondet_~i~0 < 5);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; 829#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 852#L17-3 assume !!(init_nondet_~i~0 < 5);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; 851#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 850#L17-3 assume !!(init_nondet_~i~0 < 5);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; 849#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 844#L17-3 assume !!(init_nondet_~i~0 < 5);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; 843#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 842#L17-3 assume !(init_nondet_~i~0 < 5); 819#L15 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; 820#L28-3 assume !!(rangesum_~i~1 < 5); 853#L29 assume !(rangesum_~i~1 > 2); 823#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 824#L28-3 assume !!(rangesum_~i~1 < 5); 821#L29 assume !(rangesum_~i~1 > 2); 822#L28-2 [2021-10-13 00:23:56,291 INFO L793 eck$LassoCheckResult]: Loop: 822#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 847#L28-3 assume !!(rangesum_~i~1 < 5); 848#L29 assume rangesum_~i~1 > 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; 822#L28-2 [2021-10-13 00:23:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1574813622, now seen corresponding path program 1 times [2021-10-13 00:23:56,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849578332] [2021-10-13 00:23:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,373 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 8 times [2021-10-13 00:23:56,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870037198] [2021-10-13 00:23:56,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,381 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1344808232, now seen corresponding path program 2 times [2021-10-13 00:23:56,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419150912] [2021-10-13 00:23:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:23:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 00:23:56,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:23:56,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419150912] [2021-10-13 00:23:56,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419150912] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:56,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193402877] [2021-10-13 00:23:56,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:23:56,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:23:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:56,477 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:23:56,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 00:23:56,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:23:56,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:23:56,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:23:56,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:23:56,651 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-13 00:23:56,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193402877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:23:56,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:23:56,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 00:23:56,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133088620] [2021-10-13 00:23:56,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:23:56,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:23:56,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:23:56,729 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. cyclomatic complexity: 14 Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 00:23:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:23:56,812 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-10-13 00:23:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:23:56,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 66 transitions. [2021-10-13 00:23:56,814 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-10-13 00:23:56,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 66 transitions. [2021-10-13 00:23:56,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-10-13 00:23:56,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-13 00:23:56,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 66 transitions. [2021-10-13 00:23:56,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:23:56,817 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 66 transitions. [2021-10-13 00:23:56,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 66 transitions. [2021-10-13 00:23:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2021-10-13 00:23:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 53 states have internal predecessors, (63), 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 00:23:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-10-13 00:23:56,822 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-13 00:23:56,822 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-13 00:23:56,822 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:23:56,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 63 transitions. [2021-10-13 00:23:56,823 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:23:56,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:23:56,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:23:56,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 2, 1, 1, 1, 1] [2021-10-13 00:23:56,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:23:56,825 INFO L791 eck$LassoCheckResult]: Stem: 989#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 990#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 1002#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1003#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1004#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1005#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1029#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1028#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1027#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1026#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1025#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1019#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1018#L17-3 assume !(init_nondet_~i~0 < 5); 995#L15 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; 996#L28-3 assume !!(rangesum_~i~1 < 5); 997#L29 assume !(rangesum_~i~1 > 2); 998#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 999#L28-3 assume !!(rangesum_~i~1 < 5); 1037#L29 assume !(rangesum_~i~1 > 2); 1036#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1035#L28-3 assume !!(rangesum_~i~1 < 5); 1033#L29 assume !(rangesum_~i~1 > 2); 1024#L28-2 [2021-10-13 00:23:56,825 INFO L793 eck$LassoCheckResult]: Loop: 1024#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1022#L28-3 assume !!(rangesum_~i~1 < 5); 1023#L29 assume rangesum_~i~1 > 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; 1024#L28-2 [2021-10-13 00:23:56,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1344808230, now seen corresponding path program 2 times [2021-10-13 00:23:56,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821424973] [2021-10-13 00:23:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,840 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,859 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 9 times [2021-10-13 00:23:56,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791809592] [2021-10-13 00:23:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,864 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:56,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:23:56,869 INFO L82 PathProgramCache]: Analyzing trace with hash 272987720, now seen corresponding path program 3 times [2021-10-13 00:23:56,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:23:56,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168763495] [2021-10-13 00:23:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:23:56,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:23:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:23:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:23:56,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:23:59,137 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:23:59,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:23:59,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:23:59,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:23:59,138 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:23:59,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:59,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:23:59,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:23:59,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration10_Lasso [2021-10-13 00:23:59,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:23:59,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:23:59,144 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 00:23:59,147 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 00:23:59,149 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 00:23:59,151 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 00:23:59,153 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 00:23:59,155 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 00:23:59,157 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 00:23:59,160 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 00:23:59,161 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 00:23:59,163 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 00:23:59,165 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 00:23:59,168 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 00:23:59,170 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 00:23:59,172 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 00:23:59,173 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 00:23:59,175 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 00:23:59,177 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 00:23:59,478 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 00:23:59,481 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 00:23:59,483 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 00:23:59,484 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 00:23:59,486 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 00:23:59,488 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 00:23:59,490 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 00:23:59,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:23:59,866 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:23:59,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:59,868 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:59,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:23:59,874 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 00:23:59,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:59,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:59,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:59,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:59,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:59,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:59,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:59,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:23:59,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-13 00:23:59,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:23:59,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:23:59,934 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:23:59,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:23:59,944 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 00:23:59,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:23:59,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:23:59,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:23:59,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:23:59,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:23:59,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:23:59,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:23:59,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,010 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:24:00,012 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 00:24:00,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,050 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:24:00,055 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 00:24:00,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,093 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:24:00,095 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 00:24:00,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,128 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:24:00,132 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 00:24:00,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,164 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:24:00,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:24:00,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:24:00,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,204 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:24:00,206 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 00:24:00,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,234 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:24:00,235 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 00:24:00,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,284 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:24:00,285 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 00:24:00,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,327 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,329 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 00:24:00,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:24:00,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,371 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:24:00,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:24:00,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-13 00:24:00,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,421 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:24:00,423 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 00:24:00,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,452 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:24:00,454 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 00:24:00,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,482 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:24:00,485 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 00:24:00,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,513 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,515 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 00:24:00,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:24:00,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:00,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:00,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:00,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-13 00:24:00,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,544 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:24:00,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:24:00,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,628 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,636 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 00:24:00,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:24:00,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,671 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:24:00,672 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 00:24:00,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,751 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,756 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 00:24:00,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:24:00,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-13 00:24:00,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,801 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:24:00,803 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 00:24:00,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,846 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:24:00,848 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 00:24:00,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:24:00,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:00,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,878 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:24:00,879 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 00:24:00,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:00,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:00,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:00,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:00,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:24:00,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:24:00,929 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:24:00,972 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-10-13 00:24:00,972 INFO L444 ModelExtractionUtils]: 18 out of 34 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-13 00:24:00,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:00,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:00,979 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:00,984 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:24:00,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:24:01,001 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:24:01,001 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:24:01,001 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1) = -2*ULTIMATE.start_rangesum_~i~1 + 7 Supporting invariants [] [2021-10-13 00:24:01,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 00:24:01,052 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2021-10-13 00:24:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:01,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:24:01,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:01,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:24:01,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:01,206 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 00:24:01,207 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 00:24:01,207 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 00:24:01,238 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 61 states and 73 transitions. Complement of second has 7 states. [2021-10-13 00:24:01,238 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 00:24:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 00:24:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-13 00:24:01,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2021-10-13 00:24:01,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:01,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-13 00:24:01,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:01,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 6 letters. [2021-10-13 00:24:01,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:01,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 73 transitions. [2021-10-13 00:24:01,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-13 00:24:01,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 56 states and 67 transitions. [2021-10-13 00:24:01,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-13 00:24:01,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-13 00:24:01,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2021-10-13 00:24:01,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:01,245 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-13 00:24:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2021-10-13 00:24:01,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-13 00:24:01,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 55 states have internal predecessors, (67), 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 00:24:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2021-10-13 00:24:01,249 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-13 00:24:01,249 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-13 00:24:01,250 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:24:01,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 67 transitions. [2021-10-13 00:24:01,250 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-13 00:24:01,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:24:01,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:24:01,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:24:01,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:24:01,253 INFO L791 eck$LassoCheckResult]: Stem: 1264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1265#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 1280#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1281#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1282#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1283#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1309#L17-3 assume !!(init_nondet_~i~0 < 5);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#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1306#L17-3 assume !!(init_nondet_~i~0 < 5);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#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1302#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1298#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1297#L17-3 assume !(init_nondet_~i~0 < 5); 1270#L15 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; 1271#L28-3 assume !!(rangesum_~i~1 < 5); 1272#L29 assume !(rangesum_~i~1 > 2); 1273#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1276#L28-3 assume !!(rangesum_~i~1 < 5); 1274#L29 assume !(rangesum_~i~1 > 2); 1275#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1305#L28-3 assume !!(rangesum_~i~1 < 5); 1303#L29 assume !(rangesum_~i~1 > 2); 1301#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1291#L28-3 assume !(rangesum_~i~1 < 5); 1292#L28-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 1285#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;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; 1286#L28-8 assume !!(rangesum_~i~1 < 5); 1312#L29-2 assume !(rangesum_~i~1 > 2); 1284#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1268#L28-8 assume !!(rangesum_~i~1 < 5); 1269#L29-2 assume !(rangesum_~i~1 > 2); 1296#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1311#L28-8 assume !!(rangesum_~i~1 < 5); 1310#L29-2 assume !(rangesum_~i~1 > 2); 1308#L28-7 [2021-10-13 00:24:01,253 INFO L793 eck$LassoCheckResult]: Loop: 1308#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1299#L28-8 assume !!(rangesum_~i~1 < 5); 1300#L29-2 assume rangesum_~i~1 > 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; 1308#L28-7 [2021-10-13 00:24:01,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:01,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1909073688, now seen corresponding path program 1 times [2021-10-13 00:24:01,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:01,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573412514] [2021-10-13 00:24:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:01,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-13 00:24:01,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:24:01,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573412514] [2021-10-13 00:24:01,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573412514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:24:01,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:24:01,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:24:01,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763033915] [2021-10-13 00:24:01,289 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:24:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:01,290 INFO L82 PathProgramCache]: Analyzing trace with hash 85178, now seen corresponding path program 1 times [2021-10-13 00:24:01,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:01,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581105184] [2021-10-13 00:24:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:01,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:01,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:01,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:01,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:24:01,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:24:01,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:24:01,368 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:24:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:24:01,428 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2021-10-13 00:24:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:24:01,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 86 transitions. [2021-10-13 00:24:01,430 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2021-10-13 00:24:01,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 69 states and 82 transitions. [2021-10-13 00:24:01,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-10-13 00:24:01,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-13 00:24:01,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 82 transitions. [2021-10-13 00:24:01,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:01,432 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 82 transitions. [2021-10-13 00:24:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 82 transitions. [2021-10-13 00:24:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2021-10-13 00:24:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 57 states have internal predecessors, (67), 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 00:24:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-10-13 00:24:01,437 INFO L704 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-13 00:24:01,437 INFO L587 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-13 00:24:01,437 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:24:01,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 67 transitions. [2021-10-13 00:24:01,438 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-13 00:24:01,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:24:01,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:24:01,440 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:24:01,440 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:24:01,440 INFO L791 eck$LassoCheckResult]: Stem: 1398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1399#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 1414#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1415#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1416#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1417#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1442#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1441#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1440#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1439#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1438#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1433#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1432#L17-3 assume !(init_nondet_~i~0 < 5); 1404#L15 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; 1405#L28-3 assume !!(rangesum_~i~1 < 5); 1406#L29 assume !(rangesum_~i~1 > 2); 1407#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1410#L28-3 assume !!(rangesum_~i~1 < 5); 1450#L29 assume !(rangesum_~i~1 > 2); 1411#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1412#L28-3 assume !!(rangesum_~i~1 < 5); 1408#L29 assume !(rangesum_~i~1 > 2); 1409#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1444#L28-3 assume !!(rangesum_~i~1 < 5); 1443#L29 assume rangesum_~i~1 > 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; 1434#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1426#L28-3 assume !(rangesum_~i~1 < 5); 1427#L28-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 1419#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;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; 1420#L28-8 assume !!(rangesum_~i~1 < 5); 1431#L29-2 assume !(rangesum_~i~1 > 2); 1418#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1402#L28-8 assume !!(rangesum_~i~1 < 5); 1403#L29-2 assume !(rangesum_~i~1 > 2); 1449#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1448#L28-8 assume !!(rangesum_~i~1 < 5); 1447#L29-2 assume !(rangesum_~i~1 > 2); 1445#L28-7 [2021-10-13 00:24:01,441 INFO L793 eck$LassoCheckResult]: Loop: 1445#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1446#L28-8 assume !!(rangesum_~i~1 < 5); 1436#L29-2 assume !(rangesum_~i~1 > 2); 1445#L28-7 [2021-10-13 00:24:01,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:01,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1744047494, now seen corresponding path program 1 times [2021-10-13 00:24:01,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:01,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060023549] [2021-10-13 00:24:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:01,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 00:24:01,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:24:01,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060023549] [2021-10-13 00:24:01,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060023549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:24:01,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864534655] [2021-10-13 00:24:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:01,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:01,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:01,483 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:01,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-13 00:24:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:01,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:24:01,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 00:24:01,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864534655] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:24:01,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:24:01,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-13 00:24:01,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198391371] [2021-10-13 00:24:01,731 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:24:01,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:01,731 INFO L82 PathProgramCache]: Analyzing trace with hash 85180, now seen corresponding path program 1 times [2021-10-13 00:24:01,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:01,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082030443] [2021-10-13 00:24:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:01,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:01,735 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:01,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:01,757 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:24:01,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:24:01,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:24:01,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:24:01,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:24:01,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:01,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:24:01,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:24:01,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration12_Loop [2021-10-13 00:24:01,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:24:01,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:24:01,760 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 00:24:01,765 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 00:24:01,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:24:01,788 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:24:01,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:01,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:01,795 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:01,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:24:01,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:24:01,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:24:01,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:01,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:01,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:01,838 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:01,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:24:01,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:24:01,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:24:01,941 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:24:01,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:01,944 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:24:01,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:24:01,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:24:01,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:24:01,945 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:24:01,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:01,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:24:01,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:24:01,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration12_Loop [2021-10-13 00:24:01,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:24:01,945 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:24:01,946 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 00:24:01,992 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 00:24:02,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:24:02,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:24:02,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:02,018 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:02,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:02,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:24:02,021 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 00:24:02,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:24:02,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:24:02,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:24:02,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:24:02,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:24:02,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:24:02,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:24:02,033 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:24:02,035 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:24:02,035 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:24:02,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:24:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:02,036 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:24:02,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:24:02,037 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:24:02,037 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:24:02,037 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:24:02,037 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1) = -2*ULTIMATE.start_rangesum_~i~1 + 3 Supporting invariants [] [2021-10-13 00:24:02,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-13 00:24:02,065 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:24:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:02,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:24:02,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:02,245 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:24:02,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:02,267 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 00:24:02,267 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 00:24:02,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:24:02,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 83 transitions. Complement of second has 5 states. [2021-10-13 00:24:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:24:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:24:02,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-10-13 00:24:02,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 3 letters. [2021-10-13 00:24:02,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:02,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 40 letters. Loop has 3 letters. [2021-10-13 00:24:02,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:02,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 6 letters. [2021-10-13 00:24:02,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:24:02,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 83 transitions. [2021-10-13 00:24:02,309 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-13 00:24:02,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 62 states and 72 transitions. [2021-10-13 00:24:02,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-13 00:24:02,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-13 00:24:02,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 72 transitions. [2021-10-13 00:24:02,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:02,311 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-13 00:24:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 72 transitions. [2021-10-13 00:24:02,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-10-13 00:24:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 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 00:24:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2021-10-13 00:24:02,316 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2021-10-13 00:24:02,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:24:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:24:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:24:02,317 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:24:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:24:02,343 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-10-13 00:24:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:24:02,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 85 transitions. [2021-10-13 00:24:02,345 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-13 00:24:02,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 72 states and 85 transitions. [2021-10-13 00:24:02,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-13 00:24:02,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-13 00:24:02,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 85 transitions. [2021-10-13 00:24:02,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:02,347 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 85 transitions. [2021-10-13 00:24:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 85 transitions. [2021-10-13 00:24:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2021-10-13 00:24:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 60 states have internal predecessors, (69), 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 00:24:02,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2021-10-13 00:24:02,351 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-10-13 00:24:02,352 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-10-13 00:24:02,352 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:24:02,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 69 transitions. [2021-10-13 00:24:02,353 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-13 00:24:02,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:24:02,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:24:02,354 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:24:02,354 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:24:02,355 INFO L791 eck$LassoCheckResult]: Stem: 1910#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1911#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 1927#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1928#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1929#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1930#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1957#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1956#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1955#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1953#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1952#L17-3 assume !!(init_nondet_~i~0 < 5);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; 1949#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1948#L17-3 assume !(init_nondet_~i~0 < 5); 1918#L15 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; 1919#L28-3 assume !!(rangesum_~i~1 < 5); 1920#L29 assume !(rangesum_~i~1 > 2); 1921#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1924#L28-3 assume !!(rangesum_~i~1 < 5); 1958#L29 assume !(rangesum_~i~1 > 2); 1959#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1960#L28-3 assume !!(rangesum_~i~1 < 5); 1922#L29 assume !(rangesum_~i~1 > 2); 1923#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1925#L28-3 assume !!(rangesum_~i~1 < 5); 1942#L29 assume rangesum_~i~1 > 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; 1954#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1940#L28-3 assume !(rangesum_~i~1 < 5); 1941#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 1934#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;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; 1935#L28-8 assume !!(rangesum_~i~1 < 5); 1946#L29-2 assume !(rangesum_~i~1 > 2); 1931#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1916#L28-8 assume !!(rangesum_~i~1 < 5); 1917#L29-2 assume !(rangesum_~i~1 > 2); 1947#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1966#L28-8 assume !!(rangesum_~i~1 < 5); 1962#L29-2 assume !(rangesum_~i~1 > 2); 1961#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1914#L28-8 assume !!(rangesum_~i~1 < 5); 1915#L29-2 [2021-10-13 00:24:02,355 INFO L793 eck$LassoCheckResult]: Loop: 1915#L29-2 assume rangesum_~i~1 > 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; 1951#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1950#L28-8 assume !!(rangesum_~i~1 < 5); 1915#L29-2 [2021-10-13 00:24:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:02,355 INFO L82 PathProgramCache]: Analyzing trace with hash 734232641, now seen corresponding path program 1 times [2021-10-13 00:24:02,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:02,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668626212] [2021-10-13 00:24:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:02,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:02,368 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:24:02,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375022953] [2021-10-13 00:24:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:02,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:02,370 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:02,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-13 00:24:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:24:02,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:24:02,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-13 00:24:02,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:24:02,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668626212] [2021-10-13 00:24:02,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:24:02,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375022953] [2021-10-13 00:24:02,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375022953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:24:02,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:24:02,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-13 00:24:02,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908540454] [2021-10-13 00:24:02,658 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:24:02,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:02,659 INFO L82 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 2 times [2021-10-13 00:24:02,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:02,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069159342] [2021-10-13 00:24:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:02,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:02,665 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:02,670 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:02,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:24:02,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:24:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:24:02,735 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 00:24:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:24:02,843 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2021-10-13 00:24:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:24:02,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2021-10-13 00:24:02,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-13 00:24:02,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 78 states and 89 transitions. [2021-10-13 00:24:02,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-13 00:24:02,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-13 00:24:02,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 89 transitions. [2021-10-13 00:24:02,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:02,846 INFO L681 BuchiCegarLoop]: Abstraction has 78 states and 89 transitions. [2021-10-13 00:24:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 89 transitions. [2021-10-13 00:24:02,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2021-10-13 00:24:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 66 states have internal predecessors, (76), 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 00:24:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2021-10-13 00:24:02,854 INFO L704 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-10-13 00:24:02,854 INFO L587 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-10-13 00:24:02,854 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-13 00:24:02,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 76 transitions. [2021-10-13 00:24:02,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-13 00:24:02,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:24:02,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:24:02,859 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:24:02,859 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:24:02,860 INFO L791 eck$LassoCheckResult]: Stem: 2175#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 2176#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 2194#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2195#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2196#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2197#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2229#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2227#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2225#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2223#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2219#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2215#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2214#L17-3 assume !(init_nondet_~i~0 < 5); 2183#L15 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; 2184#L28-3 assume !!(rangesum_~i~1 < 5); 2185#L29 assume !(rangesum_~i~1 > 2); 2186#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2189#L28-3 assume !!(rangesum_~i~1 < 5); 2208#L29 assume !(rangesum_~i~1 > 2); 2190#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2191#L28-3 assume !!(rangesum_~i~1 < 5); 2187#L29 assume !(rangesum_~i~1 > 2); 2188#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2235#L28-3 assume !!(rangesum_~i~1 < 5); 2234#L29 assume rangesum_~i~1 > 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; 2222#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2224#L28-3 assume !!(rangesum_~i~1 < 5); 2220#L29 assume rangesum_~i~1 > 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; 2221#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2206#L28-3 assume !(rangesum_~i~1 < 5); 2207#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2201#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;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; 2179#L28-8 assume !!(rangesum_~i~1 < 5); 2180#L29-2 assume !(rangesum_~i~1 > 2); 2198#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2199#L28-8 assume !!(rangesum_~i~1 < 5); 2212#L29-2 assume !(rangesum_~i~1 > 2); 2213#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2236#L28-8 assume !!(rangesum_~i~1 < 5); 2233#L29-2 assume !(rangesum_~i~1 > 2); 2232#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2231#L28-8 assume !!(rangesum_~i~1 < 5); 2230#L29-2 assume rangesum_~i~1 > 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; 2228#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2226#L28-8 assume !!(rangesum_~i~1 < 5); 2217#L29-2 [2021-10-13 00:24:02,860 INFO L793 eck$LassoCheckResult]: Loop: 2217#L29-2 assume rangesum_~i~1 > 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; 2218#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2216#L28-8 assume !!(rangesum_~i~1 < 5); 2217#L29-2 [2021-10-13 00:24:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:02,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1040814406, now seen corresponding path program 1 times [2021-10-13 00:24:02,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:02,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835174520] [2021-10-13 00:24:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:02,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:02,879 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:24:02,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992769883] [2021-10-13 00:24:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:02,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:02,884 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:02,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-13 00:24:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,051 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:03,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:03,106 INFO L82 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 3 times [2021-10-13 00:24:03,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:03,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281274498] [2021-10-13 00:24:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,111 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1533007565, now seen corresponding path program 2 times [2021-10-13 00:24:03,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:03,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551676752] [2021-10-13 00:24:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:03,127 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:24:03,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121033335] [2021-10-13 00:24:03,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:24:03,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:03,132 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:03,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-13 00:24:03,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:24:03,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:24:03,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:24:03,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:24:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 00:24:03,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:24:03,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551676752] [2021-10-13 00:24:03,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:24:03,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121033335] [2021-10-13 00:24:03,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121033335] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:24:03,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:24:03,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:24:03,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210668951] [2021-10-13 00:24:03,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:24:03,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:24:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:24:03,529 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. cyclomatic complexity: 15 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:24:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:24:03,598 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2021-10-13 00:24:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:24:03,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 82 transitions. [2021-10-13 00:24:03,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 00:24:03,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 66 states and 70 transitions. [2021-10-13 00:24:03,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-13 00:24:03,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-13 00:24:03,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 70 transitions. [2021-10-13 00:24:03,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:24:03,601 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-10-13 00:24:03,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 70 transitions. [2021-10-13 00:24:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-10-13 00:24:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 55 states have internal predecessors, (60), 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 00:24:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-13 00:24:03,614 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-13 00:24:03,614 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-13 00:24:03,616 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-13 00:24:03,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 60 transitions. [2021-10-13 00:24:03,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 00:24:03,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:24:03,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:24:03,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:24:03,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:24:03,619 INFO L791 eck$LassoCheckResult]: Stem: 2471#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 2472#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);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; 2491#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2492#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2493#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2494#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2521#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2520#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2518#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2516#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2514#L17-3 assume !!(init_nondet_~i~0 < 5);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; 2506#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2505#L17-3 assume !(init_nondet_~i~0 < 5); 2479#L15 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; 2480#L28-3 assume !!(rangesum_~i~1 < 5); 2481#L29 assume !(rangesum_~i~1 > 2); 2482#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2486#L28-3 assume !!(rangesum_~i~1 < 5); 2483#L29 assume !(rangesum_~i~1 > 2); 2484#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2487#L28-3 assume !!(rangesum_~i~1 < 5); 2526#L29 assume !(rangesum_~i~1 > 2); 2524#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2525#L28-3 assume !!(rangesum_~i~1 < 5); 2523#L29 assume rangesum_~i~1 > 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; 2522#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2499#L28-3 assume !!(rangesum_~i~1 < 5); 2500#L29 assume rangesum_~i~1 > 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; 2510#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2508#L28-3 assume !(rangesum_~i~1 < 5); 2503#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2497#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;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; 2475#L28-8 assume !!(rangesum_~i~1 < 5); 2476#L29-2 assume !(rangesum_~i~1 > 2); 2488#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2489#L28-8 assume !!(rangesum_~i~1 < 5); 2504#L29-2 assume !(rangesum_~i~1 > 2); 2490#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2477#L28-8 assume !!(rangesum_~i~1 < 5); 2478#L29-2 assume !(rangesum_~i~1 > 2); 2519#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2517#L28-8 assume !!(rangesum_~i~1 < 5); 2515#L29-2 assume rangesum_~i~1 > 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; 2513#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2512#L28-8 assume !!(rangesum_~i~1 < 5); 2511#L29-2 assume rangesum_~i~1 > 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; 2509#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2507#L28-8 assume !(rangesum_~i~1 < 5); 2501#L28-9 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2495#L37-1 main_#t~ret10 := rangesum_#res;main_~ret2~0 := main_#t~ret10;havoc main_#t~ret10;call main_#t~mem11 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~2 := 0; 2496#L54-3 [2021-10-13 00:24:03,622 INFO L793 eck$LassoCheckResult]: Loop: 2496#L54-3 assume !!(main_~i~2 < 4);call main_#t~mem13 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem13, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem13; 2498#L54-2 main_#t~post12 := main_~i~2;main_~i~2 := 1 + main_#t~post12;havoc main_#t~post12; 2496#L54-3 [2021-10-13 00:24:03,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:03,623 INFO L82 PathProgramCache]: Analyzing trace with hash -46487371, now seen corresponding path program 1 times [2021-10-13 00:24:03,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:03,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207386443] [2021-10-13 00:24:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:03,635 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:24:03,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635828981] [2021-10-13 00:24:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:03,638 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:03,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-13 00:24:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,831 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:24:03,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:03,970 INFO L82 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2021-10-13 00:24:03,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:03,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186777233] [2021-10-13 00:24:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,975 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:03,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:24:03,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1724688201, now seen corresponding path program 1 times [2021-10-13 00:24:03,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:24:03,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076330903] [2021-10-13 00:24:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:24:03,991 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:24:03,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369527290] [2021-10-13 00:24:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:24:03,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:24:03,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:24:03,993 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:24:04,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-13 00:24:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:04,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:24:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:24:04,265 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:24:33,143 WARN L207 SmtUtils]: Spent 28.81 s on a formula simplification. DAG size of input: 387 DAG size of output: 288 [2021-10-13 00:29:20,759 WARN L207 SmtUtils]: Spent 31.44 s on a formula simplification. DAG size of input: 232 DAG size of output: 228 [2021-10-13 00:29:20,765 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:29:20,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:29:20,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:29:20,766 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:29:20,766 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:29:20,766 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:29:20,766 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:29:20,766 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:29:20,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration15_Lasso [2021-10-13 00:29:20,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:29:20,767 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:29:21,055 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 00:29:21,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:29:21,059 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 00:29:21,061 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 00:29:21,063 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 00:29:21,066 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 00:29:21,068 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 00:29:21,070 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 00:29:21,072 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 00:29:22,680 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 00:29:22,682 INFO L168 Benchmark]: Toolchain (without parser) took 332979.12 ms. Allocated memory was 121.6 MB in the beginning and 239.1 MB in the end (delta: 117.4 MB). Free memory was 97.0 MB in the beginning and 133.4 MB in the end (delta: -36.5 MB). Peak memory consumption was 186.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,683 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 121.6 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:29:22,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.00 ms. Allocated memory was 121.6 MB in the beginning and 161.5 MB in the end (delta: 39.8 MB). Free memory was 96.6 MB in the beginning and 136.1 MB in the end (delta: -39.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.77 ms. Allocated memory is still 161.5 MB. Free memory was 136.1 MB in the beginning and 134.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,683 INFO L168 Benchmark]: Boogie Preprocessor took 56.29 ms. Allocated memory is still 161.5 MB. Free memory was 134.0 MB in the beginning and 132.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,684 INFO L168 Benchmark]: RCFGBuilder took 557.24 ms. Allocated memory is still 161.5 MB. Free memory was 132.4 MB in the beginning and 119.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,684 INFO L168 Benchmark]: BuchiAutomizer took 331983.15 ms. Allocated memory was 161.5 MB in the beginning and 239.1 MB in the end (delta: 77.6 MB). Free memory was 119.9 MB in the beginning and 133.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 171.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:29:22,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 121.6 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.00 ms. Allocated memory was 121.6 MB in the beginning and 161.5 MB in the end (delta: 39.8 MB). Free memory was 96.6 MB in the beginning and 136.1 MB in the end (delta: -39.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.77 ms. Allocated memory is still 161.5 MB. Free memory was 136.1 MB in the beginning and 134.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.29 ms. Allocated memory is still 161.5 MB. Free memory was 134.0 MB in the beginning and 132.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 557.24 ms. Allocated memory is still 161.5 MB. Free memory was 132.4 MB in the beginning and 119.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 331983.15 ms. Allocated memory was 161.5 MB in the beginning and 239.1 MB in the end (delta: 77.6 MB). Free memory was 119.9 MB in the beginning and 133.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 171.4 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 00:29:22,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:22,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:23,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2021-10-13 00:29:23,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-13 00:29:23,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-13 00:29:23,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-13 00:29:23,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:24,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:24,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 00:29:24,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:24,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-13 00:29:24,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:29:25,295 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forcibly destroying the process [2021-10-13 00:29:25,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be78c67-2569-4785-861c-f38f3ff44212/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...