./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro --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 866342b97e5be917007cb97e07a0644c7c9d2aa9b428c32cf026d727d672a191 --- 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-8393723 [2022-11-18 20:33:36,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:33:36,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:33:36,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:33:36,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:33:36,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:33:36,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:33:36,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:33:36,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:33:36,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:33:36,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:33:36,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:33:36,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:33:36,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:33:36,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:33:36,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:33:36,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:33:36,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:33:36,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:33:36,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:33:36,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:33:36,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:33:36,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:33:36,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:33:36,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:33:36,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:33:36,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:33:36,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:33:36,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:33:36,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:33:36,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:33:36,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:33:36,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:33:36,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:33:36,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:33:36,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:33:36,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:33:36,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:33:36,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:33:36,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:33:36,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:33:36,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:33:36,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:33:36,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:33:36,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:33:36,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:33:36,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:33:36,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:33:36,411 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:33:36,411 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:33:36,412 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:33:36,412 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:33:36,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:33:36,413 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:33:36,413 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:33:36,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:33:36,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:33:36,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:33:36,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:33:36,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:33:36,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:33:36,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:33:36,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:33:36,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:33:36,415 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:33:36,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:33:36,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:33:36,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:33:36,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:33:36,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:33:36,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:33:36,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:33:36,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:33:36,420 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:33:36,420 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_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 866342b97e5be917007cb97e07a0644c7c9d2aa9b428c32cf026d727d672a191 [2022-11-18 20:33:36,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:33:36,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:33:36,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:33:36,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:33:36,756 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:33:36,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-acceleration/array_2-2.i [2022-11-18 20:33:36,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/data/c0b78b0fb/c3f1069514c0443194af23b753003737/FLAG7f35995aa [2022-11-18 20:33:37,261 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:33:37,262 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/sv-benchmarks/c/loop-acceleration/array_2-2.i [2022-11-18 20:33:37,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/data/c0b78b0fb/c3f1069514c0443194af23b753003737/FLAG7f35995aa [2022-11-18 20:33:37,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/data/c0b78b0fb/c3f1069514c0443194af23b753003737 [2022-11-18 20:33:37,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:33:37,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:33:37,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:37,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:33:37,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:33:37,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4736a59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37, skipping insertion in model container [2022-11-18 20:33:37,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:33:37,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:33:37,851 WARN L234 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_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/sv-benchmarks/c/loop-acceleration/array_2-2.i[849,862] [2022-11-18 20:33:37,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:37,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:33:37,889 WARN L234 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_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/sv-benchmarks/c/loop-acceleration/array_2-2.i[849,862] [2022-11-18 20:33:37,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:33:37,908 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:33:37,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37 WrapperNode [2022-11-18 20:33:37,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:33:37,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:37,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:33:37,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:33:37,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,942 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2022-11-18 20:33:37,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:33:37,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:33:37,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:33:37,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:33:37,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:33:37,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:33:37,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:33:37,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:33:37,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (1/1) ... [2022-11-18 20:33:37,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:37,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:37,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:38,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:33:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:33:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:33:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:33:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:33:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:33:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:33:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:33:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:33:38,107 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:33:38,109 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:33:38,243 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:33:38,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:33:38,249 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:33:38,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:38 BoogieIcfgContainer [2022-11-18 20:33:38,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:33:38,253 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:33:38,253 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:33:38,257 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:33:38,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:33:38,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:33:37" (1/3) ... [2022-11-18 20:33:38,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18ac290e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:33:38, skipping insertion in model container [2022-11-18 20:33:38,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:33:38,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:33:37" (2/3) ... [2022-11-18 20:33:38,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18ac290e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:33:38, skipping insertion in model container [2022-11-18 20:33:38,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:33:38,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:33:38" (3/3) ... [2022-11-18 20:33:38,262 INFO L332 chiAutomizerObserver]: Analyzing ICFG array_2-2.i [2022-11-18 20:33:38,316 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:33:38,317 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:33:38,317 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:33:38,317 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:33:38,317 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:33:38,317 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:33:38,317 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:33:38,318 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:33:38,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2022-11-18 20:33:38,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-18 20:33:38,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:38,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:38,346 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:33:38,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:38,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:33:38,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2022-11-18 20:33:38,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-18 20:33:38,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:38,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:38,350 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:33:38,350 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:38,362 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 6#L25-3true [2022-11-18 20:33:38,362 INFO L750 eck$LassoCheckResult]: Loop: 6#L25-3true assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 10#L25-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 6#L25-3true [2022-11-18 20:33:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 20:33:38,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:38,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41921412] [2022-11-18 20:33:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:38,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-11-18 20:33:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434546822] [2022-11-18 20:33:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:38,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-18 20:33:38,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490544394] [2022-11-18 20:33:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:38,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:39,188 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:33:39,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:33:39,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:33:39,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:33:39,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:33:39,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:39,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:33:39,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:33:39,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2.i_Iteration1_Lasso [2022-11-18 20:33:39,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:33:39,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:33:39,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,243 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:33:39,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:33:39,895 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:33:39,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:39,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:39,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:33:39,906 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 [2022-11-18 20:33:39,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:39,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:39,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:39,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:39,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:39,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:39,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:39,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:39,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:39,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:39,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:39,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:39,980 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 [2022-11-18 20:33:39,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:33:39,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:39,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:39,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:39,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:39,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:33:39,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:33:40,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:33:40,030 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 [2022-11-18 20:33:40,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,076 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 [2022-11-18 20:33:40,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:33:40,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,131 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 [2022-11-18 20:33:40,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:33:40,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:33:40,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:33:40,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:33:40,193 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 [2022-11-18 20:33:40,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,227 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,236 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 [2022-11-18 20:33:40,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:33:40,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,280 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 [2022-11-18 20:33:40,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:33:40,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:33:40,335 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 [2022-11-18 20:33:40,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:33:40,392 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 [2022-11-18 20:33:40,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:33:40,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:33:40,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,444 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,460 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 [2022-11-18 20:33:40,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:33:40,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:33:40,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:33:40,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:33:40,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,501 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:33:40,506 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 [2022-11-18 20:33:40,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:33:40,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:33:40,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:33:40,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,551 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,556 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 [2022-11-18 20:33:40,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:33:40,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:33:40,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:33:40,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:33:40,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:33:40,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:33:40,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:33:40,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:33:40,697 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2022-11-18 20:33:40,697 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. [2022-11-18 20:33:40,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:33:40,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:40,702 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:33:40,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:33:40,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:33:40,771 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:33:40,771 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:33:40,772 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 4095*v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:33:40,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:40,837 INFO L156 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2022-11-18 20:33:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:40,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:33:40,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:40,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:33:40,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:41,012 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 [2022-11-18 20:33:41,014 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,064 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 37 transitions. Complement of second has 8 states. [2022-11-18 20:33:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:33:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-11-18 20:33:41,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-18 20:33:41,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:33:41,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 20:33:41,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:33:41,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-18 20:33:41,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:33:41,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2022-11-18 20:33:41,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 8 states and 10 transitions. [2022-11-18 20:33:41,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-18 20:33:41,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-18 20:33:41,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-11-18 20:33:41,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:41,082 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:33:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-11-18 20:33:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-18 20:33:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-18 20:33:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-11-18 20:33:41,108 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:33:41,108 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:33:41,108 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:33:41,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-11-18 20:33:41,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:41,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:41,109 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:33:41,109 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:41,110 INFO L748 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 131#L25-3 assume !(main_~i~0#1 < 2048); 130#L25-4 main_~i~0#1 := 0; 128#L29-3 [2022-11-18 20:33:41,110 INFO L750 eck$LassoCheckResult]: Loop: 128#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 129#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 128#L29-3 [2022-11-18 20:33:41,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-11-18 20:33:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:41,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844094679] [2022-11-18 20:33:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:41,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:33:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:41,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:41,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844094679] [2022-11-18 20:33:41,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844094679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:41,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:41,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:33:41,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076855533] [2022-11-18 20:33:41,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:41,250 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:33:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 1 times [2022-11-18 20:33:41,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:41,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355437743] [2022-11-18 20:33:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:41,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:41,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:41,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:33:41,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:33:41,378 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:41,399 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-11-18 20:33:41,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-11-18 20:33:41,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2022-11-18 20:33:41,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 20:33:41,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 20:33:41,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2022-11-18 20:33:41,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:41,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-18 20:33:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2022-11-18 20:33:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2022-11-18 20:33:41,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2022-11-18 20:33:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-18 20:33:41,405 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 20:33:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:33:41,409 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 20:33:41,409 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:33:41,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2022-11-18 20:33:41,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:41,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:41,418 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:33:41,418 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:41,418 INFO L748 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 155#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 149#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 150#L25-3 assume !(main_~i~0#1 < 2048); 156#L25-4 main_~i~0#1 := 0; 151#L29-3 [2022-11-18 20:33:41,418 INFO L750 eck$LassoCheckResult]: Loop: 151#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 152#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 151#L29-3 [2022-11-18 20:33:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2022-11-18 20:33:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:41,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724855038] [2022-11-18 20:33:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:41,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:41,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724855038] [2022-11-18 20:33:41,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724855038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:33:41,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077128799] [2022-11-18 20:33:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:33:41,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:41,535 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:33:41,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:33:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:41,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:33:41,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:41,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:33:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:41,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077128799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:33:41,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:33:41,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:33:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627320060] [2022-11-18 20:33:41,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:33:41,639 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:33:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:41,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 2 times [2022-11-18 20:33:41,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:41,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622356613] [2022-11-18 20:33:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:41,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:41,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:41,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:41,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:41,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:41,738 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:41,792 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-18 20:33:41,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 22 transitions. [2022-11-18 20:33:41,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 22 transitions. [2022-11-18 20:33:41,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-18 20:33:41,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 20:33:41,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2022-11-18 20:33:41,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:41,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-18 20:33:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2022-11-18 20:33:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2022-11-18 20:33:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-18 20:33:41,797 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-18 20:33:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:33:41,798 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-18 20:33:41,799 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:33:41,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 15 transitions. [2022-11-18 20:33:41,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:41,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:41,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:41,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2022-11-18 20:33:41,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:41,802 INFO L748 eck$LassoCheckResult]: Stem: 220#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 221#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 224#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 218#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 219#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 225#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 231#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 230#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 229#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 228#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 227#L25-3 assume !(main_~i~0#1 < 2048); 226#L25-4 main_~i~0#1 := 0; 222#L29-3 [2022-11-18 20:33:41,802 INFO L750 eck$LassoCheckResult]: Loop: 222#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 223#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 222#L29-3 [2022-11-18 20:33:41,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2022-11-18 20:33:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:41,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009664772] [2022-11-18 20:33:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:42,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:42,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009664772] [2022-11-18 20:33:42,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009664772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:33:42,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300807695] [2022-11-18 20:33:42,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:33:42,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:33:42,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:42,011 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:33:42,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:33:42,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:33:42,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:33:42,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:33:42,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:42,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:33:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:42,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300807695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:33:42,208 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:33:42,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-18 20:33:42,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771571270] [2022-11-18 20:33:42,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:33:42,209 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:33:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 3 times [2022-11-18 20:33:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:42,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822423792] [2022-11-18 20:33:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:42,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:42,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:42,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:33:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:33:42,302 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:42,447 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2022-11-18 20:33:42,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 46 transitions. [2022-11-18 20:33:42,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:42,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 46 transitions. [2022-11-18 20:33:42,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-18 20:33:42,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-18 20:33:42,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 46 transitions. [2022-11-18 20:33:42,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:42,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-11-18 20:33:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 46 transitions. [2022-11-18 20:33:42,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 26. [2022-11-18 20:33:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:33:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-11-18 20:33:42,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-11-18 20:33:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:33:42,454 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-11-18 20:33:42,454 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:33:42,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 27 transitions. [2022-11-18 20:33:42,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:42,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:42,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:42,456 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2022-11-18 20:33:42,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:42,456 INFO L748 eck$LassoCheckResult]: Stem: 363#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 365#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 366#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 367#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 359#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 360#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 384#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 383#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 382#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 381#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 380#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 379#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 378#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 377#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 376#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 375#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 374#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 373#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 372#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 371#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 370#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 369#L25-3 assume !(main_~i~0#1 < 2048); 368#L25-4 main_~i~0#1 := 0; 361#L29-3 [2022-11-18 20:33:42,456 INFO L750 eck$LassoCheckResult]: Loop: 361#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 362#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 361#L29-3 [2022-11-18 20:33:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2022-11-18 20:33:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:42,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185576961] [2022-11-18 20:33:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:42,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:42,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185576961] [2022-11-18 20:33:42,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185576961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:33:42,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645255245] [2022-11-18 20:33:42,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:33:42,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:33:42,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:42,822 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:33:42,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:33:43,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:33:43,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:33:43,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:33:43,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:43,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:33:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:44,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645255245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:33:44,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:33:44,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-18 20:33:44,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536589636] [2022-11-18 20:33:44,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:33:44,126 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:33:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 4 times [2022-11-18 20:33:44,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:44,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195502385] [2022-11-18 20:33:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:44,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:44,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:44,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:44,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:44,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:33:44,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:33:44,236 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. cyclomatic complexity: 3 Second operand has 25 states, 25 states have (on average 1.96) internal successors, (49), 25 states have internal predecessors, (49), 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) [2022-11-18 20:33:44,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:44,502 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2022-11-18 20:33:44,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 94 transitions. [2022-11-18 20:33:44,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:44,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 93 states and 94 transitions. [2022-11-18 20:33:44,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-18 20:33:44,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-18 20:33:44,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 94 transitions. [2022-11-18 20:33:44,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:44,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 94 transitions. [2022-11-18 20:33:44,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 94 transitions. [2022-11-18 20:33:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 50. [2022-11-18 20:33:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 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) [2022-11-18 20:33:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2022-11-18 20:33:44,510 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 51 transitions. [2022-11-18 20:33:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:33:44,512 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 51 transitions. [2022-11-18 20:33:44,513 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:33:44,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 51 transitions. [2022-11-18 20:33:44,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:44,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:44,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:44,515 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1] [2022-11-18 20:33:44,515 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:44,515 INFO L748 eck$LassoCheckResult]: Stem: 648#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 649#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 650#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 651#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 652#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 644#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 645#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 693#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 692#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 691#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 690#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 689#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 688#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 687#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 686#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 685#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 684#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 683#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 682#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 681#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 680#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 679#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 678#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 677#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 676#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 675#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 674#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 673#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 672#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 671#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 670#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 669#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 668#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 667#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 666#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 665#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 664#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 663#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 662#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 661#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 660#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 659#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 658#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 657#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 656#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 655#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 654#L25-3 assume !(main_~i~0#1 < 2048); 653#L25-4 main_~i~0#1 := 0; 646#L29-3 [2022-11-18 20:33:44,516 INFO L750 eck$LassoCheckResult]: Loop: 646#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 647#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 646#L29-3 [2022-11-18 20:33:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 828161207, now seen corresponding path program 4 times [2022-11-18 20:33:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:44,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205850399] [2022-11-18 20:33:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:45,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:45,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205850399] [2022-11-18 20:33:45,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205850399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:33:45,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56057753] [2022-11-18 20:33:45,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:33:45,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:33:45,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:45,556 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:33:45,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 20:33:45,777 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:33:45,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:33:45,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:33:45,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:33:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:45,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:33:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:46,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56057753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:33:46,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:33:46,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-18 20:33:46,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042701496] [2022-11-18 20:33:46,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:33:46,807 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:33:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 5 times [2022-11-18 20:33:46,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:46,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110844337] [2022-11-18 20:33:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:46,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:46,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:33:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:33:46,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:33:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-18 20:33:46,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 20:33:46,893 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. cyclomatic complexity: 3 Second operand has 49 states, 49 states have (on average 1.9795918367346939) internal successors, (97), 49 states have internal predecessors, (97), 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) [2022-11-18 20:33:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:47,413 INFO L93 Difference]: Finished difference Result 189 states and 190 transitions. [2022-11-18 20:33:47,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 190 transitions. [2022-11-18 20:33:47,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:47,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 189 states and 190 transitions. [2022-11-18 20:33:47,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 97 [2022-11-18 20:33:47,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 97 [2022-11-18 20:33:47,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 190 transitions. [2022-11-18 20:33:47,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:33:47,432 INFO L218 hiAutomatonCegarLoop]: Abstraction has 189 states and 190 transitions. [2022-11-18 20:33:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 190 transitions. [2022-11-18 20:33:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 98. [2022-11-18 20:33:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.010204081632653) internal successors, (99), 97 states have internal predecessors, (99), 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) [2022-11-18 20:33:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2022-11-18 20:33:47,444 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 99 transitions. [2022-11-18 20:33:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:33:47,445 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 99 transitions. [2022-11-18 20:33:47,446 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:33:47,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 99 transitions. [2022-11-18 20:33:47,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:33:47,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:33:47,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:33:47,452 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1] [2022-11-18 20:33:47,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:33:47,454 INFO L748 eck$LassoCheckResult]: Stem: 1219#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 1220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post1#1, main_#t~mem5#1, main_#t~post4#1, main_#t~mem6#1, main_#t~mem7#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 1223#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1217#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1218#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1224#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1314#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1313#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1312#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1311#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1310#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1309#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1308#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1307#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1306#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1305#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1304#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1303#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1302#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1301#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1300#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1299#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1298#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1297#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1296#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1295#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1294#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1293#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1292#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1291#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1290#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1289#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1288#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1287#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1286#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1285#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1284#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1283#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1282#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1281#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1280#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1279#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1278#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1277#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1276#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1275#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1274#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1273#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1272#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1271#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1270#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1269#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1268#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1267#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1266#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1265#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1264#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1263#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1262#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1261#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1260#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1259#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1258#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1257#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1256#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1255#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1254#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1253#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1252#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1251#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1250#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1249#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1248#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1247#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1246#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1245#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1244#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1243#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1242#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1241#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1240#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1239#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1238#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1237#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1236#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1235#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1234#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1233#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1232#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1231#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1230#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1229#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1228#L25-3 assume !!(main_~i~0#1 < 2048);call write~int(main_#t~nondet2#1, main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet2#1;call write~int(main_#t~nondet3#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet3#1; 1227#L25-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1226#L25-3 assume !(main_~i~0#1 < 2048); 1225#L25-4 main_~i~0#1 := 0; 1221#L29-3 [2022-11-18 20:33:47,455 INFO L750 eck$LassoCheckResult]: Loop: 1221#L29-3 assume !!(main_~i~0#1 < 2048);call main_#t~mem5#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem5#1;havoc main_#t~mem5#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 1222#L29-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1221#L29-3 [2022-11-18 20:33:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 830581479, now seen corresponding path program 5 times [2022-11-18 20:33:47,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:47,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849506445] [2022-11-18 20:33:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:50,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849506445] [2022-11-18 20:33:50,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849506445] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:33:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836239917] [2022-11-18 20:33:50,510 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:33:50,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:33:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:33:50,515 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:33:50,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6a8dc6f-b9a7-4bc3-9d8c-afb6e89297b4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process