./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/avg10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/avg10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G --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 431bc26901e3cf271c74e4f10a5bc241d4509dbbafd99aaf0126c46ffc8b7c33 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:45:00,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:45:00,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:45:00,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:45:00,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:45:00,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:45:00,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:45:00,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:45:00,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:45:00,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:45:00,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:45:00,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:45:00,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:45:00,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:45:00,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:45:00,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:45:00,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:45:00,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:45:00,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:45:00,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:45:00,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:45:00,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:45:00,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:45:00,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:45:00,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:45:00,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:45:00,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:45:00,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:45:00,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:45:00,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:45:00,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:45:00,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:45:00,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:45:00,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:45:00,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:45:00,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:45:00,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:45:00,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:45:00,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:45:00,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:45:00,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:45:00,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 13:45:00,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:45:00,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:45:00,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:45:00,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:45:00,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:45:00,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:45:00,454 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:45:00,455 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:45:00,455 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:45:00,455 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:45:00,456 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:45:00,456 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:45:00,456 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:45:00,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:45:00,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:45:00,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:45:00,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:45:00,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:45:00,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:45:00,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:45:00,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:45:00,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:45:00,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:45:00,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:45:00,459 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:45:00,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:45:00,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:45:00,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:45:00,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:45:00,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:45:00,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:45:00,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:45:00,462 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:45:00,462 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_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 431bc26901e3cf271c74e4f10a5bc241d4509dbbafd99aaf0126c46ffc8b7c33 [2021-11-23 13:45:00,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:45:00,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:45:00,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:45:00,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:45:00,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:45:00,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/reducercommutativity/avg10-2.i [2021-11-23 13:45:00,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/data/9bf7c2b95/8e5732957eb04b0db69f610b43086760/FLAG852cf3b02 [2021-11-23 13:45:01,287 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:45:01,288 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/sv-benchmarks/c/reducercommutativity/avg10-2.i [2021-11-23 13:45:01,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/data/9bf7c2b95/8e5732957eb04b0db69f610b43086760/FLAG852cf3b02 [2021-11-23 13:45:01,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/data/9bf7c2b95/8e5732957eb04b0db69f610b43086760 [2021-11-23 13:45:01,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:45:01,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:45:01,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:45:01,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:45:01,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:45:01,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:01" (1/1) ... [2021-11-23 13:45:01,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@985be62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:01, skipping insertion in model container [2021-11-23 13:45:01,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:01" (1/1) ... [2021-11-23 13:45:01,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:45:01,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:45:01,966 WARN L230 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_20e74cb9-abc0-4152-90ba-2ae62e154654/sv-benchmarks/c/reducercommutativity/avg10-2.i[1282,1295] [2021-11-23 13:45:01,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:45:01,976 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:45:02,007 WARN L230 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_20e74cb9-abc0-4152-90ba-2ae62e154654/sv-benchmarks/c/reducercommutativity/avg10-2.i[1282,1295] [2021-11-23 13:45:02,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:45:02,025 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:45:02,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02 WrapperNode [2021-11-23 13:45:02,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:45:02,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:45:02,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:45:02,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:45:02,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,073 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2021-11-23 13:45:02,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:45:02,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:45:02,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:45:02,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:45:02,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:45:02,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:45:02,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:45:02,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:45:02,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (1/1) ... [2021-11-23 13:45:02,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:02,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:02,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:02,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:45:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:45:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:45:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:45:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:45:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:45:02,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:45:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:45:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:45:02,266 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:45:02,268 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:45:02,545 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:45:02,551 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:45:02,552 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 13:45:02,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:02 BoogieIcfgContainer [2021-11-23 13:45:02,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:45:02,555 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:45:02,555 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:45:02,558 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:45:02,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:45:02,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:45:01" (1/3) ... [2021-11-23 13:45:02,559 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dd6d9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:45:02, skipping insertion in model container [2021-11-23 13:45:02,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:45:02,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:02" (2/3) ... [2021-11-23 13:45:02,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dd6d9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:45:02, skipping insertion in model container [2021-11-23 13:45:02,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:45:02,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:02" (3/3) ... [2021-11-23 13:45:02,561 INFO L388 chiAutomizerObserver]: Analyzing ICFG avg10-2.i [2021-11-23 13:45:02,603 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:45:02,603 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:45:02,603 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:45:02,603 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:45:02,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:45:02,604 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:45:02,604 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:45:02,604 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:45:02,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 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) [2021-11-23 13:45:02,638 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-23 13:45:02,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:02,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:02,645 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:45:02,645 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:02,645 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:45:02,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 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) [2021-11-23 13:45:02,648 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-23 13:45:02,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:02,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:02,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:45:02,649 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:02,655 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 15#L34-3true [2021-11-23 13:45:02,656 INFO L793 eck$LassoCheckResult]: Loop: 15#L34-3true assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 11#L34-2true main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 15#L34-3true [2021-11-23 13:45:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:45:02,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:02,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822622399] [2021-11-23 13:45:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:02,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,763 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:02,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-23 13:45:02,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:02,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986010206] [2021-11-23 13:45:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:02,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,809 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:02,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:02,820 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-23 13:45:02,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:02,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143084648] [2021-11-23 13:45:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:02,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:02,859 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:03,151 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:45:03,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:45:03,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:45:03,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:45:03,153 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:45:03,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:45:03,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:45:03,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg10-2.i_Iteration1_Lasso [2021-11-23 13:45:03,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:45:03,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:45:03,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:03,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:45:03,680 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:45:03,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:03,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:03,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:03,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:03,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:03,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:03,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:03,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:03,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:03,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:03,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:45:03,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:03,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:03,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:03,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:03,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:45:03,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:03,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:03,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:03,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:03,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:03,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:03,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:03,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:03,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:03,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-23 13:45:03,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:03,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:03,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:03,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:03,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:03,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:03,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:03,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:03,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:03,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:03,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:45:03,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:03,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:03,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:03,875 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:03,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:03,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:45:03,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:03,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:03,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:03,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:03,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:03,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:03,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:03,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:03,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:03,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:03,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:03,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:03,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:03,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:03,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:03,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:03,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:03,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:03,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:03,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:45:03,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:45:04,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,077 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:45:04,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,154 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:45:04,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,249 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:45:04,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,314 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:45:04,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 13:45:04,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:04,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:04,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:04,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 13:45:04,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:04,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:04,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-23 13:45:04,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:04,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:04,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:04,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,597 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:04,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:04,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:04,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:04,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:04,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:04,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:04,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-23 13:45:04,641 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:45:04,710 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-11-23 13:45:04,710 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-11-23 13:45:04,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:04,742 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:04,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:45:04,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-23 13:45:04,771 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-23 13:45:04,772 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:45:04,772 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1, ULTIMATE.start_main_~i~1#1) = 19*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1 - 8*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2021-11-23 13:45:04,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:04,829 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-11-23 13:45:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:04,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:45:04,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:04,884 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:45:04,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:04,976 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-23 13:45:04,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 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) 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) [2021-11-23 13:45:05,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 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). 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 66 states and 92 transitions. Complement of second has 8 states. [2021-11-23 13:45:05,066 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 [2021-11-23 13:45:05,072 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) [2021-11-23 13:45:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2021-11-23 13:45:05,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-23 13:45:05,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:05,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-23 13:45:05,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:05,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-23 13:45:05,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:05,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2021-11-23 13:45:05,082 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 19 states and 24 transitions. [2021-11-23 13:45:05,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-23 13:45:05,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-23 13:45:05,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-11-23 13:45:05,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:05,088 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-23 13:45:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-11-23 13:45:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-23 13:45:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 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) [2021-11-23 13:45:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-23 13:45:05,117 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-23 13:45:05,118 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-23 13:45:05,118 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:45:05,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-11-23 13:45:05,119 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:05,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:05,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-23 13:45:05,120 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:05,120 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 163#L34-3 assume !(main_~i~1#1 < 10); 155#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 156#L20-3 [2021-11-23 13:45:05,120 INFO L793 eck$LassoCheckResult]: Loop: 156#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 169#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 156#L20-3 [2021-11-23 13:45:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,121 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-11-23 13:45:05,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854996614] [2021-11-23 13:45:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:05,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854996614] [2021-11-23 13:45:05,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854996614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:45:05,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:45:05,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:45:05,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038173865] [2021-11-23 13:45:05,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:45:05,169 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:05,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 1 times [2021-11-23 13:45:05,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273322009] [2021-11-23 13:45:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:05,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:45:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:45:05,234 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 10 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) [2021-11-23 13:45:05,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:05,247 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-23 13:45:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:45:05,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2021-11-23 13:45:05,250 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 24 transitions. [2021-11-23 13:45:05,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-23 13:45:05,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-23 13:45:05,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-11-23 13:45:05,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:05,251 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-23 13:45:05,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-11-23 13:45:05,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-23 13:45:05,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-23 13:45:05,254 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-23 13:45:05,254 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-23 13:45:05,254 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:45:05,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-11-23 13:45:05,255 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:05,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:05,256 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:45:05,256 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:05,256 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 208#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 211#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 212#L34-3 assume !(main_~i~1#1 < 10); 200#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 201#L20-3 [2021-11-23 13:45:05,256 INFO L793 eck$LassoCheckResult]: Loop: 201#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 214#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 201#L20-3 [2021-11-23 13:45:05,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,257 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-11-23 13:45:05,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187498133] [2021-11-23 13:45:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187498133] [2021-11-23 13:45:05,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187498133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:45:05,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318909589] [2021-11-23 13:45:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:45:05,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:05,292 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:45:05,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-23 13:45:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:05,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:45:05,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:45:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318909589] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:45:05,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:45:05,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-23 13:45:05,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488538161] [2021-11-23 13:45:05,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:45:05,411 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 2 times [2021-11-23 13:45:05,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936155921] [2021-11-23 13:45:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,437 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:05,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:05,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:45:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:45:05,499 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 9 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) [2021-11-23 13:45:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:05,528 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-11-23 13:45:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:45:05,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2021-11-23 13:45:05,531 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 29 transitions. [2021-11-23 13:45:05,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-23 13:45:05,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-23 13:45:05,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2021-11-23 13:45:05,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:05,532 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-23 13:45:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2021-11-23 13:45:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-23 13:45:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.16) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-23 13:45:05,535 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-23 13:45:05,536 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-23 13:45:05,536 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 13:45:05,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-11-23 13:45:05,536 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:05,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:05,537 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-11-23 13:45:05,537 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:05,538 INFO L791 eck$LassoCheckResult]: Stem: 282#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 292#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 299#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 300#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 295#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 296#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 304#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 303#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 302#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 301#L34-3 assume !(main_~i~1#1 < 10); 284#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 285#L20-3 [2021-11-23 13:45:05,538 INFO L793 eck$LassoCheckResult]: Loop: 285#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 298#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 285#L20-3 [2021-11-23 13:45:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2021-11-23 13:45:05,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595203941] [2021-11-23 13:45:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:05,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595203941] [2021-11-23 13:45:05,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595203941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:45:05,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567681994] [2021-11-23 13:45:05,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:45:05,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:45:05,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:05,627 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:45:05,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-23 13:45:05,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:45:05,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:45:05,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:45:05,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:45:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:05,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567681994] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:45:05,832 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:45:05,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-23 13:45:05,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145479351] [2021-11-23 13:45:05,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:45:05,836 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 3 times [2021-11-23 13:45:05,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23691256] [2021-11-23 13:45:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,854 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:05,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:05,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:05,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:45:05,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:45:05,912 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 9 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:05,970 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-11-23 13:45:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:45:05,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2021-11-23 13:45:05,976 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 41 transitions. [2021-11-23 13:45:05,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-23 13:45:05,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-23 13:45:05,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 41 transitions. [2021-11-23 13:45:05,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:05,978 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-23 13:45:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 41 transitions. [2021-11-23 13:45:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-23 13:45:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-23 13:45:05,983 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-23 13:45:05,983 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-23 13:45:05,983 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-23 13:45:05,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2021-11-23 13:45:05,985 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:45:05,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:05,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:05,987 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-11-23 13:45:05,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:05,987 INFO L791 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 425#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 436#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 443#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 444#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 439#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 440#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 460#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 459#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 458#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 457#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 456#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 455#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 454#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 453#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 452#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 451#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 450#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 449#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 448#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 447#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 446#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 445#L34-3 assume !(main_~i~1#1 < 10); 428#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 429#L20-3 [2021-11-23 13:45:05,988 INFO L793 eck$LassoCheckResult]: Loop: 429#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 442#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 429#L20-3 [2021-11-23 13:45:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2021-11-23 13:45:05,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:05,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226139964] [2021-11-23 13:45:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:05,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,041 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,072 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:06,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 4 times [2021-11-23 13:45:06,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:06,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240330485] [2021-11-23 13:45:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:06,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,077 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash -95702815, now seen corresponding path program 1 times [2021-11-23 13:45:06,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:06,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104248896] [2021-11-23 13:45:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:06,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,110 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:06,142 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:10,732 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:45:10,732 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:45:10,732 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:45:10,732 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:45:10,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:45:10,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:10,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:45:10,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:45:10,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg10-2.i_Iteration5_Lasso [2021-11-23 13:45:10,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:45:10,733 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:45:10,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:10,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:10,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:10,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:10,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:10,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:45:11,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:45:11,356 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:45:11,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,381 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-23 13:45:11,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:11,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:11,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:11,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,413 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-23 13:45:11,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:11,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:11,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:11,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-11-23 13:45:11,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,451 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-23 13:45:11,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:11,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:11,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:11,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,494 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-23 13:45:11,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:45:11,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:45:11,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:45:11,532 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,571 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-23 13:45:11,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,642 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-23 13:45:11,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,706 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-23 13:45:11,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,784 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-23 13:45:11,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,848 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-23 13:45:11,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,918 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:11,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-23 13:45:11,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:11,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:11,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:11,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:11,983 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:11,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:11,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:11,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:11,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:11,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:11,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-23 13:45:11,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:11,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:12,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,021 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:12,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-23 13:45:12,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:12,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:12,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:12,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:12,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:12,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:12,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,085 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,095 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 [2021-11-23 13:45:12,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-23 13:45:12,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:12,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:12,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:12,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:12,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:12,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:12,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,137 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-23 13:45:12,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:12,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:12,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:12,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:12,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:12,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:12,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:12,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-23 13:45:12,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,185 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-23 13:45:12,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:12,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:12,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:12,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:12,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:12,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:12,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:45:12,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,254 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-23 13:45:12,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:45:12,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:45:12,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:45:12,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:45:12,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:45:12,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:45:12,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:45:12,290 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:45:12,317 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-11-23 13:45:12,317 INFO L444 ModelExtractionUtils]: 3 out of 25 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-11-23 13:45:12,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:45:12,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,319 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-23 13:45:12,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:45:12,330 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-23 13:45:12,331 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:45:12,331 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~i~0#1) = -2*ULTIMATE.start_avg_~i~0#1 + 19 Supporting invariants [] [2021-11-23 13:45:12,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,384 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-11-23 13:45:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:12,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:45:12,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:12,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-23 13:45:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:12,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:45:12,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:45:12,534 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-23 13:45:12,534 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:12,549 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 48 transitions. Complement of second has 7 states. [2021-11-23 13:45:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:45:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-23 13:45:12,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 24 letters. Loop has 2 letters. [2021-11-23 13:45:12,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:12,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 26 letters. Loop has 2 letters. [2021-11-23 13:45:12,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:12,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 24 letters. Loop has 4 letters. [2021-11-23 13:45:12,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:45:12,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 48 transitions. [2021-11-23 13:45:12,554 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:12,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 43 transitions. [2021-11-23 13:45:12,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-23 13:45:12,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-23 13:45:12,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 43 transitions. [2021-11-23 13:45:12,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:12,556 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-23 13:45:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 43 transitions. [2021-11-23 13:45:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 13:45:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.131578947368421) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-11-23 13:45:12,559 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-23 13:45:12,559 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-23 13:45:12,560 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-23 13:45:12,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 43 transitions. [2021-11-23 13:45:12,560 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:12,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:12,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:12,562 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:45:12,562 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:12,562 INFO L791 eck$LassoCheckResult]: Stem: 640#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 641#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 652#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 660#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 661#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 655#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 656#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 677#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 676#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 675#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 674#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 673#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 672#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 671#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 670#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 669#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 668#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 667#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 666#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 665#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 664#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 663#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 662#L34-3 assume !(main_~i~1#1 < 10); 644#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 645#L20-3 assume !(avg_~i~0#1 < 10); 653#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 654#L23 main_#t~ret5#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 650#L20-8 [2021-11-23 13:45:12,562 INFO L793 eck$LassoCheckResult]: Loop: 650#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 651#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 650#L20-8 [2021-11-23 13:45:12,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:12,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1328178265, now seen corresponding path program 1 times [2021-11-23 13:45:12,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:12,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698887751] [2021-11-23 13:45:12,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:12,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 13:45:12,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:12,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698887751] [2021-11-23 13:45:12,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698887751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:45:12,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:45:12,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:45:12,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569950632] [2021-11-23 13:45:12,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:45:12,618 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:12,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:12,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2243, now seen corresponding path program 1 times [2021-11-23 13:45:12,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:12,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569923939] [2021-11-23 13:45:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:12,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:12,623 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:12,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:12,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:45:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:45:12,668 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. cyclomatic complexity: 10 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) [2021-11-23 13:45:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:12,691 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-11-23 13:45:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:45:12,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 47 transitions. [2021-11-23 13:45:12,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:12,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 47 transitions. [2021-11-23 13:45:12,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-23 13:45:12,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-23 13:45:12,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 47 transitions. [2021-11-23 13:45:12,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:12,694 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-11-23 13:45:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 47 transitions. [2021-11-23 13:45:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2021-11-23 13:45:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-11-23 13:45:12,697 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-23 13:45:12,697 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-23 13:45:12,698 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-23 13:45:12,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 43 transitions. [2021-11-23 13:45:12,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:12,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:12,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:12,700 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:45:12,700 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:12,700 INFO L791 eck$LassoCheckResult]: Stem: 729#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 730#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 739#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 742#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 743#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 748#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 765#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 764#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 763#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 762#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 761#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 760#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 759#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 758#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 757#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 756#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 755#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 754#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 753#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 752#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 751#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 750#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 749#L34-3 assume !(main_~i~1#1 < 10); 731#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 732#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 745#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 746#L20-3 assume !(avg_~i~0#1 < 10); 740#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 741#L23 main_#t~ret5#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 737#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 738#L20-7 [2021-11-23 13:45:12,700 INFO L793 eck$LassoCheckResult]: Loop: 738#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 747#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 738#L20-7 [2021-11-23 13:45:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1721709263, now seen corresponding path program 1 times [2021-11-23 13:45:12,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:12,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422489442] [2021-11-23 13:45:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:12,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 13:45:12,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:12,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422489442] [2021-11-23 13:45:12,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422489442] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:45:12,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679740993] [2021-11-23 13:45:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:12,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:45:12,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:12,747 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:45:12,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-23 13:45:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:12,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:45:12,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 13:45:12,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:45:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 13:45:12,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679740993] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:45:12,898 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:45:12,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-23 13:45:12,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268513130] [2021-11-23 13:45:12,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:45:12,901 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:12,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:12,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 2 times [2021-11-23 13:45:12,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:12,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032467936] [2021-11-23 13:45:12,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:12,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:12,910 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:12,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:12,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:45:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:45:12,959 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:13,042 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2021-11-23 13:45:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:45:13,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 62 transitions. [2021-11-23 13:45:13,044 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:13,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 62 transitions. [2021-11-23 13:45:13,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-11-23 13:45:13,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-11-23 13:45:13,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 62 transitions. [2021-11-23 13:45:13,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:13,046 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-23 13:45:13,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 62 transitions. [2021-11-23 13:45:13,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2021-11-23 13:45:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2021-11-23 13:45:13,050 INFO L704 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-11-23 13:45:13,051 INFO L587 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-11-23 13:45:13,051 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-23 13:45:13,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 55 transitions. [2021-11-23 13:45:13,051 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:13,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:13,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:13,053 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:45:13,053 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:13,054 INFO L791 eck$LassoCheckResult]: Stem: 1008#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 1009#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1020#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1030#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1031#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1023#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1024#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1058#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1057#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1056#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1055#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1054#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1053#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1052#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1051#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1050#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1049#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1048#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1047#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1046#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1045#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1044#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1043#L34-3 assume !(main_~i~1#1 < 10); 1012#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1013#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1026#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1027#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1028#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1042#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1041#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1039#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1036#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1035#L20-3 assume !(avg_~i~0#1 < 10); 1021#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 1022#L23 main_#t~ret5#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1018#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1019#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1029#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1040#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1038#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1037#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1034#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1033#L20-7 [2021-11-23 13:45:13,054 INFO L793 eck$LassoCheckResult]: Loop: 1033#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1032#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1033#L20-7 [2021-11-23 13:45:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash 512696561, now seen corresponding path program 1 times [2021-11-23 13:45:13,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:13,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638002736] [2021-11-23 13:45:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 13:45:13,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:13,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638002736] [2021-11-23 13:45:13,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638002736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:45:13,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849266236] [2021-11-23 13:45:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:45:13,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:13,150 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:45:13,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-23 13:45:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:13,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 13:45:13,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 13:45:13,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:45:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 13:45:13,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849266236] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:45:13,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:45:13,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-23 13:45:13,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812427535] [2021-11-23 13:45:13,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:45:13,412 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:45:13,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:13,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 3 times [2021-11-23 13:45:13,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:13,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312160696] [2021-11-23 13:45:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,426 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:13,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:13,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:45:13,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:45:13,476 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. cyclomatic complexity: 9 Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 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) [2021-11-23 13:45:13,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:13,642 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2021-11-23 13:45:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:45:13,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 98 transitions. [2021-11-23 13:45:13,644 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:13,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 94 states and 98 transitions. [2021-11-23 13:45:13,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-23 13:45:13,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-23 13:45:13,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 98 transitions. [2021-11-23 13:45:13,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:13,646 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 98 transitions. [2021-11-23 13:45:13,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 98 transitions. [2021-11-23 13:45:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 75. [2021-11-23 13:45:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.0533333333333332) internal successors, (79), 74 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-11-23 13:45:13,651 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-11-23 13:45:13,651 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-11-23 13:45:13,651 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-23 13:45:13,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 79 transitions. [2021-11-23 13:45:13,652 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:45:13,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:13,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:13,653 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:45:13,653 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:13,654 INFO L791 eck$LassoCheckResult]: Stem: 1415#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 1416#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1427#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1430#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1431#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1437#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1489#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1488#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1487#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1486#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1485#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1484#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1483#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1482#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1481#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1480#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1479#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1478#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1477#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1476#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1475#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1474#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1473#L34-3 assume !(main_~i~1#1 < 10); 1419#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1420#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1433#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1434#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1435#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1472#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1471#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1469#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1467#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1465#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1463#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1461#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1459#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1457#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1455#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1453#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1451#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1449#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1447#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1445#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1442#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1441#L20-3 assume !(avg_~i~0#1 < 10); 1428#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 1429#L23 main_#t~ret5#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1425#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1426#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1436#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1470#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1468#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1466#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1464#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1462#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1460#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1458#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1456#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1454#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1452#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1450#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1448#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1446#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1444#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1443#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1440#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1439#L20-7 [2021-11-23 13:45:13,654 INFO L793 eck$LassoCheckResult]: Loop: 1439#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1438#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1439#L20-7 [2021-11-23 13:45:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:13,655 INFO L85 PathProgramCache]: Analyzing trace with hash -549950095, now seen corresponding path program 2 times [2021-11-23 13:45:13,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:13,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870770550] [2021-11-23 13:45:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 4 times [2021-11-23 13:45:13,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:13,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073044661] [2021-11-23 13:45:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,982 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:13,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash -221062545, now seen corresponding path program 3 times [2021-11-23 13:45:13,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448483480] [2021-11-23 13:45:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:13,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:45:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 81 proven. 19 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-23 13:45:14,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:45:14,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448483480] [2021-11-23 13:45:14,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448483480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:45:14,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046337199] [2021-11-23 13:45:14,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:45:14,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:45:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:45:14,154 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:45:14,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e74cb9-abc0-4152-90ba-2ae62e154654/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-23 13:45:14,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-23 13:45:14,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:45:14,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:45:14,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:45:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-23 13:45:14,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:45:14,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046337199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:45:14,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:45:14,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 13 [2021-11-23 13:45:14,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698312352] [2021-11-23 13:45:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:45:14,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:45:14,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:45:14,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:45:14,713 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. cyclomatic complexity: 9 Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 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) [2021-11-23 13:45:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:45:14,891 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2021-11-23 13:45:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:45:14,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 95 transitions. [2021-11-23 13:45:14,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:45:14,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 72 states and 73 transitions. [2021-11-23 13:45:14,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-23 13:45:14,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-11-23 13:45:14,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 73 transitions. [2021-11-23 13:45:14,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:45:14,895 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 73 transitions. [2021-11-23 13:45:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 73 transitions. [2021-11-23 13:45:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-23 13:45:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 71 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:45:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2021-11-23 13:45:14,899 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 73 transitions. [2021-11-23 13:45:14,899 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 73 transitions. [2021-11-23 13:45:14,899 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-23 13:45:14,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 73 transitions. [2021-11-23 13:45:14,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-23 13:45:14,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:45:14,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:45:14,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:45:14,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:45:14,901 INFO L791 eck$LassoCheckResult]: Stem: 1804#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 1805#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_~i~1#1, main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1814#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1822#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1823#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1817#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1818#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1875#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1874#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1873#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1872#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1871#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1870#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1869#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1868#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1867#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1866#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1865#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1864#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1863#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1862#L34-3 assume !!(main_~i~1#1 < 10);call write~int(main_#t~nondet4#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet4#1; 1861#L34-2 main_#t~post3#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1860#L34-3 assume !(main_~i~1#1 < 10); 1808#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1809#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1819#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1820#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1859#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1858#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1857#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1856#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1854#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1852#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1850#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1848#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1846#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1844#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1842#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1840#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1838#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1836#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1834#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1832#L20-3 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1830#L20-2 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1828#L20-3 assume !(avg_~i~0#1 < 10); 1815#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 1816#L23 main_#t~ret5#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem2#1, avg_#t~post1#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1812#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1813#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1821#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1855#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1853#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1851#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1849#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1847#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1845#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1843#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1841#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1839#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1837#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1835#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1833#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1831#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1829#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1827#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1826#L20-8 assume !!(avg_~i~0#1 < 10);call avg_#t~mem2#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem2#1;havoc avg_#t~mem2#1; 1825#L20-7 avg_#t~post1#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post1#1;havoc avg_#t~post1#1; 1824#L20-8 assume !(avg_~i~0#1 < 10); 1806#L20-9 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 10 then 1 + avg_~ret~0#1 / 10 else avg_~ret~0#1 / 10) % 4294967296 - 4294967296); 1807#L23-1 main_#t~ret8#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret2~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;main_~i~2#1 := 0; 1811#L43-3 [2021-11-23 13:45:14,901 INFO L793 eck$LassoCheckResult]: Loop: 1811#L43-3 assume !!(main_~i~2#1 < 9);call main_#t~mem11#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~2#1), 4);call write~int(main_#t~mem11#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem11#1; 1810#L43-2 main_#t~post10#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1811#L43-3 [2021-11-23 13:45:14,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:14,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1987708689, now seen corresponding path program 1 times [2021-11-23 13:45:14,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:14,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219750848] [2021-11-23 13:45:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:14,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,015 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:15,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2755, now seen corresponding path program 1 times [2021-11-23 13:45:15,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:15,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368314364] [2021-11-23 13:45:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:15,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,208 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:45:15,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1072398385, now seen corresponding path program 1 times [2021-11-23 13:45:15,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:45:15,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004741049] [2021-11-23 13:45:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:45:15,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:45:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,319 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:45:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:45:15,552 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:45:48,063 WARN L227 SmtUtils]: Spent 32.43s on a formula simplification. DAG size of input: 617 DAG size of output: 426 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 13:46:43,909 WARN L227 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 74 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 13:47:05,049 WARN L227 SmtUtils]: Spent 12.17s on a formula simplification that was a NOOP. DAG size: 74 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 13:48:22,656 WARN L227 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 74 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 13:50:08,213 WARN L227 SmtUtils]: Spent 20.28s on a formula simplification that was a NOOP. DAG size: 248 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 13:50:08,220 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:50:08,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:50:08,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:50:08,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:50:08,220 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:50:08,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:50:08,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:50:08,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:50:08,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg10-2.i_Iteration10_Lasso [2021-11-23 13:50:08,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:50:08,221 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:50:08,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:50:08,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:50:08,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:50:08,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:50:42,534 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 69