./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8 --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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:01:47,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:01:47,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:01:47,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:01:47,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:01:47,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:01:47,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:01:47,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:01:47,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:01:47,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:01:47,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:01:47,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:01:47,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:01:47,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:01:47,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:01:47,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:01:47,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:01:47,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:01:47,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:01:47,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:01:47,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:01:47,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:01:47,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:01:47,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:01:47,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:01:47,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:01:47,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:01:47,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:01:47,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:01:47,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:01:47,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:01:47,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:01:47,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:01:47,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:01:47,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:01:47,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:01:47,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:01:47,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:01:47,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:01:47,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:01:47,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:01:47,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 15:01:47,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:01:47,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:01:47,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:01:47,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:01:47,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:01:47,226 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 15:01:47,226 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 15:01:47,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 15:01:47,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 15:01:47,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:01:47,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:01:47,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:01:47,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:01:47,229 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 15:01:47,229 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_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2022-12-13 15:01:47,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:01:47,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:01:47,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:01:47,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:01:47,409 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:01:47,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-invgen/id_build.i [2022-12-13 15:01:50,077 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:01:50,204 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:01:50,204 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/sv-benchmarks/c/loop-invgen/id_build.i [2022-12-13 15:01:50,209 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/data/20e4303be/c85be5482a474bd8a037a761183561b5/FLAGd38e8929d [2022-12-13 15:01:50,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/data/20e4303be/c85be5482a474bd8a037a761183561b5 [2022-12-13 15:01:50,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:01:50,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:01:50,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:01:50,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:01:50,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:01:50,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d67726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50, skipping insertion in model container [2022-12-13 15:01:50,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:01:50,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:01:50,339 WARN L237 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_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-12-13 15:01:50,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:01:50,352 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:01:50,362 WARN L237 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_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-12-13 15:01:50,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:01:50,374 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:01:50,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50 WrapperNode [2022-12-13 15:01:50,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:01:50,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:01:50,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:01:50,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:01:50,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,396 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-12-13 15:01:50,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:01:50,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:01:50,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:01:50,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:01:50,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,408 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:01:50,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:01:50,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:01:50,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:01:50,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (1/1) ... [2022-12-13 15:01:50,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:50,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:50,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:50,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 15:01:50,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:01:50,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:01:50,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:01:50,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:01:50,508 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:01:50,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:01:50,576 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:01:50,581 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:01:50,581 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:01:50,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:01:50 BoogieIcfgContainer [2022-12-13 15:01:50,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:01:50,583 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 15:01:50,583 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 15:01:50,586 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 15:01:50,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:01:50,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 03:01:50" (1/3) ... [2022-12-13 15:01:50,587 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a316a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:01:50, skipping insertion in model container [2022-12-13 15:01:50,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:01:50,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:01:50" (2/3) ... [2022-12-13 15:01:50,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a316a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:01:50, skipping insertion in model container [2022-12-13 15:01:50,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:01:50,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:01:50" (3/3) ... [2022-12-13 15:01:50,589 INFO L332 chiAutomizerObserver]: Analyzing ICFG id_build.i [2022-12-13 15:01:50,627 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 15:01:50,627 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 15:01:50,627 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 15:01:50,627 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 15:01:50,627 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 15:01:50,627 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 15:01:50,627 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 15:01:50,627 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 15:01:50,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:50,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-12-13 15:01:50,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:50,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:50,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:01:50,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 15:01:50,647 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 15:01:50,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:50,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-12-13 15:01:50,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:50,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:50,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:01:50,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 15:01:50,654 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 14#L27-3true [2022-12-13 15:01:50,654 INFO L750 eck$LassoCheckResult]: Loop: 14#L27-3true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 15#L28-3true assume !(main_~j~0#1 < 8); 8#L27-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 14#L27-3true [2022-12-13 15:01:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 15:01:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:50,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718176718] [2022-12-13 15:01:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:50,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:50,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:50,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:50,763 INFO L85 PathProgramCache]: Analyzing trace with hash 39941, now seen corresponding path program 1 times [2022-12-13 15:01:50,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:50,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091830657] [2022-12-13 15:01:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:50,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:50,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091830657] [2022-12-13 15:01:50,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091830657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:01:50,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:01:50,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:01:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069278935] [2022-12-13 15:01:50,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:01:50,827 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 15:01:50,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:01:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:01:50,853 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:50,871 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-12-13 15:01:50,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 25 transitions. [2022-12-13 15:01:50,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2022-12-13 15:01:50,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 16 states and 17 transitions. [2022-12-13 15:01:50,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 15:01:50,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 15:01:50,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2022-12-13 15:01:50,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:01:50,877 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-13 15:01:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2022-12-13 15:01:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-12-13 15:01:50,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-13 15:01:50,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-13 15:01:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:01:50,900 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-13 15:01:50,900 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 15:01:50,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2022-12-13 15:01:50,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-12-13 15:01:50,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:50,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:50,901 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:01:50,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:01:50,901 INFO L748 eck$LassoCheckResult]: Stem: 54#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 55#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 56#L27-3 [2022-12-13 15:01:50,902 INFO L750 eck$LassoCheckResult]: Loop: 56#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 57#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 49#L18 assume !(0 == __VERIFIER_assert_~cond#1); 50#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 51#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 52#L18-5 assume { :end_inline___VERIFIER_assert } true; 53#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 58#L28-3 assume !(main_~j~0#1 < 8); 59#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 56#L27-3 [2022-12-13 15:01:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:50,902 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-12-13 15:01:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:50,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185690930] [2022-12-13 15:01:50,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:50,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:50,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1762492053, now seen corresponding path program 1 times [2022-12-13 15:01:50,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:50,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311626599] [2022-12-13 15:01:50,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:50,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:50,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:50,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311626599] [2022-12-13 15:01:50,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311626599] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:01:50,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468383808] [2022-12-13 15:01:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:50,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:50,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:01:50,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:01:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:50,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:01:50,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:51,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:51,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468383808] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:51,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:51,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 15:01:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422792735] [2022-12-13 15:01:51,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:51,059 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 15:01:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:51,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:01:51,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:01:51,060 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:51,086 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-12-13 15:01:51,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2022-12-13 15:01:51,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-12-13 15:01:51,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2022-12-13 15:01:51,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-12-13 15:01:51,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-12-13 15:01:51,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2022-12-13 15:01:51,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:01:51,089 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-12-13 15:01:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2022-12-13 15:01:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 15:01:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:51,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-12-13 15:01:51,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-12-13 15:01:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:01:51,093 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-12-13 15:01:51,093 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 15:01:51,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 30 transitions. [2022-12-13 15:01:51,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-12-13 15:01:51,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:51,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:51,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:01:51,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-12-13 15:01:51,095 INFO L748 eck$LassoCheckResult]: Stem: 152#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 154#L27-3 [2022-12-13 15:01:51,095 INFO L750 eck$LassoCheckResult]: Loop: 154#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 155#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 174#L18 assume !(0 == __VERIFIER_assert_~cond#1); 148#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 149#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 150#L18-5 assume { :end_inline___VERIFIER_assert } true; 151#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 156#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 146#L18 assume !(0 == __VERIFIER_assert_~cond#1); 147#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 173#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 172#L18-5 assume { :end_inline___VERIFIER_assert } true; 171#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 170#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 169#L18 assume !(0 == __VERIFIER_assert_~cond#1); 168#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 167#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 166#L18-5 assume { :end_inline___VERIFIER_assert } true; 165#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 164#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 159#L18 assume !(0 == __VERIFIER_assert_~cond#1); 163#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 162#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 161#L18-5 assume { :end_inline___VERIFIER_assert } true; 160#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 158#L28-3 assume !(main_~j~0#1 < 8); 157#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 154#L27-3 [2022-12-13 15:01:51,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-12-13 15:01:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:51,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908654944] [2022-12-13 15:01:51,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1080615355, now seen corresponding path program 2 times [2022-12-13 15:01:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:51,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622117942] [2022-12-13 15:01:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:51,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:51,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622117942] [2022-12-13 15:01:51,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622117942] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:01:51,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025592541] [2022-12-13 15:01:51,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:01:51,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:51,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:51,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:01:51,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:01:51,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:01:51,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:51,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:01:51,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:51,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:51,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025592541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:51,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:51,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-12-13 15:01:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784277871] [2022-12-13 15:01:51,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:51,446 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 15:01:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:01:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:01:51,447 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:51,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:51,476 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2022-12-13 15:01:51,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 54 transitions. [2022-12-13 15:01:51,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2022-12-13 15:01:51,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 54 transitions. [2022-12-13 15:01:51,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2022-12-13 15:01:51,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-12-13 15:01:51,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 54 transitions. [2022-12-13 15:01:51,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:01:51,480 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-12-13 15:01:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 54 transitions. [2022-12-13 15:01:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-13 15:01:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-12-13 15:01:51,483 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-12-13 15:01:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:01:51,483 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-12-13 15:01:51,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 15:01:51,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 54 transitions. [2022-12-13 15:01:51,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2022-12-13 15:01:51,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:51,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:51,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 15:01:51,485 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 8, 1, 1, 1] [2022-12-13 15:01:51,485 INFO L748 eck$LassoCheckResult]: Stem: 403#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 404#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 405#L27-3 [2022-12-13 15:01:51,485 INFO L750 eck$LassoCheckResult]: Loop: 405#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 406#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 449#L18 assume !(0 == __VERIFIER_assert_~cond#1); 399#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 400#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 401#L18-5 assume { :end_inline___VERIFIER_assert } true; 402#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 407#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 397#L18 assume !(0 == __VERIFIER_assert_~cond#1); 398#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 448#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 447#L18-5 assume { :end_inline___VERIFIER_assert } true; 446#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 445#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 444#L18 assume !(0 == __VERIFIER_assert_~cond#1); 443#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 442#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 441#L18-5 assume { :end_inline___VERIFIER_assert } true; 440#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 439#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 438#L18 assume !(0 == __VERIFIER_assert_~cond#1); 437#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 436#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 435#L18-5 assume { :end_inline___VERIFIER_assert } true; 434#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 433#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 432#L18 assume !(0 == __VERIFIER_assert_~cond#1); 431#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 430#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 429#L18-5 assume { :end_inline___VERIFIER_assert } true; 428#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 427#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 426#L18 assume !(0 == __VERIFIER_assert_~cond#1); 425#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 424#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 423#L18-5 assume { :end_inline___VERIFIER_assert } true; 422#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 421#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 420#L18 assume !(0 == __VERIFIER_assert_~cond#1); 419#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 418#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 417#L18-5 assume { :end_inline___VERIFIER_assert } true; 416#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 415#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 410#L18 assume !(0 == __VERIFIER_assert_~cond#1); 414#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 413#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 412#L18-5 assume { :end_inline___VERIFIER_assert } true; 411#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 409#L28-3 assume !(main_~j~0#1 < 8); 408#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 405#L27-3 [2022-12-13 15:01:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-12-13 15:01:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519645966] [2022-12-13 15:01:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:51,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:51,493 INFO L85 PathProgramCache]: Analyzing trace with hash 811262085, now seen corresponding path program 3 times [2022-12-13 15:01:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:51,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244729189] [2022-12-13 15:01:51,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:51,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:51,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2018441603, now seen corresponding path program 1 times [2022-12-13 15:01:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:51,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667844588] [2022-12-13 15:01:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:51,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:51,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:51,972 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:51,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:51,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:51,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:51,973 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 15:01:51,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:51,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:51,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:51,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2022-12-13 15:01:51,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:51,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:51,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:51,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:51,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:51,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:51,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,027 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:52,027 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 15:01:52,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 15:01:52,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:52,047 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=8} Honda state: {ULTIMATE.start_main_~j~0#1=8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:52,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:52,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 15:01:52,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:52,065 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:52,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 15:01:52,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 15:01:52,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:52,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,086 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 15:01:52,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 15:01:52,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,129 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 15:01:52,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 15:01:52,133 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:52,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:52,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:52,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:52,134 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 15:01:52,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,134 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:52,134 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:52,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2022-12-13 15:01:52,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:52,134 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:52,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,147 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:52,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 15:01:52,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 15:01:52,190 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 [2022-12-13 15:01:52,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:52,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 15:01:52,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,210 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 15:01:52,212 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 [2022-12-13 15:01:52,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:52,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 15:01:52,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,230 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 15:01:52,232 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 [2022-12-13 15:01:52,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,246 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 15:01:52,251 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-12-13 15:01:52,251 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 15:01:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,253 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 15:01:52,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 15:01:52,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 15:01:52,255 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 15:01:52,256 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-12-13 15:01:52,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 15:01:52,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 15:01:52,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:52,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:01:52,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:52,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:01:52,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-12-13 15:01:52,502 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 15:01:52,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:52,530 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 107 transitions. Complement of second has 4 states. [2022-12-13 15:01:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 15:01:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-12-13 15:01:52,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 51 letters. [2022-12-13 15:01:52,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 53 letters. Loop has 51 letters. [2022-12-13 15:01:52,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 102 letters. [2022-12-13 15:01:52,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 107 transitions. [2022-12-13 15:01:52,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 15:01:52,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 103 states and 106 transitions. [2022-12-13 15:01:52,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-12-13 15:01:52,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-12-13 15:01:52,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 106 transitions. [2022-12-13 15:01:52,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 15:01:52,537 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 106 transitions. [2022-12-13 15:01:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 106 transitions. [2022-12-13 15:01:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2022-12-13 15:01:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-12-13 15:01:52,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-12-13 15:01:52,539 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-12-13 15:01:52,539 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 15:01:52,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2022-12-13 15:01:52,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 15:01:52,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:52,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:52,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 15:01:52,540 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:01:52,540 INFO L748 eck$LassoCheckResult]: Stem: 743#$Ultimate##0 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(9, 2); 744#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 745#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 747#L28-3 [2022-12-13 15:01:52,540 INFO L750 eck$LassoCheckResult]: Loop: 747#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 732#L18 assume !(0 == __VERIFIER_assert_~cond#1); 733#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 736#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 738#L18-5 assume { :end_inline___VERIFIER_assert } true; 739#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 747#L28-3 [2022-12-13 15:01:52,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2022-12-13 15:01:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658321263] [2022-12-13 15:01:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1426785425, now seen corresponding path program 1 times [2022-12-13 15:01:52,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752975761] [2022-12-13 15:01:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash -181476169, now seen corresponding path program 1 times [2022-12-13 15:01:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107605959] [2022-12-13 15:01:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:52,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 15:01:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:52,613 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:52,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:52,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:52,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:52,614 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 15:01:52,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:52,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:52,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2022-12-13 15:01:52,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:52,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:52,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,654 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:52,654 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 15:01:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 15:01:52,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:52,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:52,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 15:01:52,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 15:01:52,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:52,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:52,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 15:01:52,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 15:01:52,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,720 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:52,721 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:52,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 15:01:52,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,724 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 15:01:52,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:52,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 15:01:52,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,742 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 15:01:52,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 15:01:52,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:52,766 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 15:01:52,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 15:01:52,769 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:52,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:52,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:52,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:52,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 15:01:52,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:52,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:52,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2022-12-13 15:01:52,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:52,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:52,770 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,774 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:52,807 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:52,807 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 15:01:52,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,809 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 15:01:52,811 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 [2022-12-13 15:01:52,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:52,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 15:01:52,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,827 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 15:01:52,829 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 [2022-12-13 15:01:52,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:52,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 15:01:52,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,845 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 15:01:52,847 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 [2022-12-13 15:01:52,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:52,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 15:01:52,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,864 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 15:01:52,867 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 [2022-12-13 15:01:52,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:52,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:52,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:52,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:52,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:52,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:52,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:52,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 15:01:52,882 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 15:01:52,882 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 15:01:52,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:52,884 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:52,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 15:01:52,886 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 15:01:52,886 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 15:01:52,886 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 15:01:52,886 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2022-12-13 15:01:52,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 15:01:52,890 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 15:01:52,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:52,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:01:52,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:52,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:01:52,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:52,929 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 15:01:52,930 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5 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) [2022-12-13 15:01:52,944 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5. 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) Result 165 states and 172 transitions. Complement of second has 7 states. [2022-12-13 15:01:52,944 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 [2022-12-13 15:01:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-12-13 15:01:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-12-13 15:01:52,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 15:01:52,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2022-12-13 15:01:52,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 12 letters. [2022-12-13 15:01:52,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:52,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 172 transitions. [2022-12-13 15:01:52,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 15:01:52,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 111 states and 115 transitions. [2022-12-13 15:01:52,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-12-13 15:01:52,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-12-13 15:01:52,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 115 transitions. [2022-12-13 15:01:52,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 15:01:52,951 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 115 transitions. [2022-12-13 15:01:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 115 transitions. [2022-12-13 15:01:52,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 60. [2022-12-13 15:01:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 59 states have internal predecessors, (62), 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) [2022-12-13 15:01:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-12-13 15:01:52,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-12-13 15:01:52,955 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-12-13 15:01:52,955 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 15:01:52,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 62 transitions. [2022-12-13 15:01:52,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 15:01:52,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:01:52,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:01:52,957 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2022-12-13 15:01:52,957 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:01:52,957 INFO L748 eck$LassoCheckResult]: Stem: 1018#$Ultimate##0 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(9, 2); 1019#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 1020#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1021#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1066#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1012#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1013#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1016#L18-5 assume { :end_inline___VERIFIER_assert } true; 1017#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1024#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1009#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1010#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1065#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1064#L18-5 assume { :end_inline___VERIFIER_assert } true; 1063#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1062#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1061#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1060#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1059#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1058#L18-5 assume { :end_inline___VERIFIER_assert } true; 1057#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1056#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1055#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1054#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1053#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1052#L18-5 assume { :end_inline___VERIFIER_assert } true; 1051#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1050#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1049#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1048#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1047#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1046#L18-5 assume { :end_inline___VERIFIER_assert } true; 1045#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1044#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1043#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1042#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1041#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1040#L18-5 assume { :end_inline___VERIFIER_assert } true; 1039#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1038#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1037#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1036#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1035#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1034#L18-5 assume { :end_inline___VERIFIER_assert } true; 1033#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1032#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1027#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1031#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1030#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1029#L18-5 assume { :end_inline___VERIFIER_assert } true; 1028#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1026#L28-3 assume !(main_~j~0#1 < 8); 1025#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1022#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1023#L28-3 [2022-12-13 15:01:52,957 INFO L750 eck$LassoCheckResult]: Loop: 1023#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1007#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1008#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1011#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1014#L18-5 assume { :end_inline___VERIFIER_assert } true; 1015#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1023#L28-3 [2022-12-13 15:01:52,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1852819737, now seen corresponding path program 2 times [2022-12-13 15:01:52,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654744000] [2022-12-13 15:01:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:52,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1426785425, now seen corresponding path program 2 times [2022-12-13 15:01:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422997599] [2022-12-13 15:01:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:52,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:52,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1846282505, now seen corresponding path program 3 times [2022-12-13 15:01:52,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:52,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409618340] [2022-12-13 15:01:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:52,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:53,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:01:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:01:53,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:01:53,063 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:53,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:53,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:53,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:53,063 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 15:01:53,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:53,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:53,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2022-12-13 15:01:53,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:53,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:53,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,099 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:53,100 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 15:01:53,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,101 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 15:01:53,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:53,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:53,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:01:53,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:01:53,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 15:01:53,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,122 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 15:01:53,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:01:53,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:53,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 15:01:53,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,140 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 15:01:53,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 15:01:53,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:01:53,162 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 15:01:53,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:53,166 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:01:53,166 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:01:53,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:01:53,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:01:53,166 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 15:01:53,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:01:53,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:01:53,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2022-12-13 15:01:53,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:01:53,166 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:01:53,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,169 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,174 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:01:53,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:01:53,204 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 15:01:53,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,205 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 15:01:53,207 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 [2022-12-13 15:01:53,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:53,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:53,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:53,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:53,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:53,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:53,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:53,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:01:53,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:53,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,223 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 15:01:53,225 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 [2022-12-13 15:01:53,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:01:53,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:01:53,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:01:53,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:01:53,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:01:53,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:01:53,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:01:53,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 15:01:53,240 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 15:01:53,240 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 15:01:53,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:01:53,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:53,241 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:01:53,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 15:01:53,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 15:01:53,243 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 15:01:53,243 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 15:01:53,243 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2022-12-13 15:01:53,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:53,246 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 15:01:53,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:53,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 15:01:53,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 15:01:53,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 15:01:53,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2022-12-13 15:01:53,369 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 [2022-12-13 15:01:53,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-12-13 15:01:53,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2022-12-13 15:01:53,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:53,371 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 15:01:53,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:53,470 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 15:01:53,471 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,482 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2022-12-13 15:01:53,482 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 [2022-12-13 15:01:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-12-13 15:01:53,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2022-12-13 15:01:53,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:53,483 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 15:01:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:53,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:01:53,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:01:53,575 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 15:01:53,575 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 112 transitions. Complement of second has 6 states. [2022-12-13 15:01:53,586 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 [2022-12-13 15:01:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-12-13 15:01:53,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 6 letters. [2022-12-13 15:01:53,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:53,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 60 letters. Loop has 6 letters. [2022-12-13 15:01:53,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:53,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 12 letters. [2022-12-13 15:01:53,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:01:53,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 112 transitions. [2022-12-13 15:01:53,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 15:01:53,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 0 states and 0 transitions. [2022-12-13 15:01:53,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 15:01:53,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 15:01:53,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 15:01:53,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:01:53,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:01:53,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:01:53,589 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:01:53,589 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 15:01:53,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:01:53,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 15:01:53,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 15:01:53,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 03:01:53 BoogieIcfgContainer [2022-12-13 15:01:53,596 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 15:01:53,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:01:53,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:01:53,597 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:01:53,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:01:50" (3/4) ... [2022-12-13 15:01:53,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:01:53,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:01:53,599 INFO L158 Benchmark]: Toolchain (without parser) took 3378.35ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 119.8MB in the end (delta: -538.9kB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2022-12-13 15:01:53,599 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:53,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.79ms. Allocated memory is still 153.1MB. Free memory was 119.2MB in the beginning and 108.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:01:53,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.90ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:53,600 INFO L158 Benchmark]: Boogie Preprocessor took 12.39ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 106.7MB in the end (delta: 561.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:53,600 INFO L158 Benchmark]: RCFGBuilder took 172.58ms. Allocated memory is still 153.1MB. Free memory was 106.7MB in the beginning and 96.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:01:53,600 INFO L158 Benchmark]: BuchiAutomizer took 3012.87ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 96.7MB in the beginning and 119.8MB in the end (delta: -23.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-12-13 15:01:53,601 INFO L158 Benchmark]: Witness Printer took 2.47ms. Allocated memory is still 184.5MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:53,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.79ms. Allocated memory is still 153.1MB. Free memory was 119.2MB in the beginning and 108.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.90ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.39ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 106.7MB in the end (delta: 561.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.58ms. Allocated memory is still 153.1MB. Free memory was 106.7MB in the beginning and 96.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3012.87ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 96.7MB in the beginning and 119.8MB in the end (delta: -23.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 2.47ms. Allocated memory is still 184.5MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + nlen and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 15 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 15 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 99 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 176/176 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 84 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 15:01:53,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:01:53,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 15:01:54,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3dc6f2-2288-43c2-a1e7-d41eb332938d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE