./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:14:07,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:14:07,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:14:07,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:14:07,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:14:07,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:14:07,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:14:07,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:14:07,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:14:07,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:14:07,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:14:07,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:14:07,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:14:07,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:14:07,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:14:07,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:14:07,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:14:07,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:14:07,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:14:07,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:14:07,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:14:07,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:14:07,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:14:07,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:14:07,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:14:07,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:14:07,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:14:07,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:14:07,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:14:07,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:14:07,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:14:07,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:14:07,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:14:07,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:14:07,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:14:07,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:14:07,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:14:07,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:14:07,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:14:07,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:14:07,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:14:07,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 14:14:07,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:14:07,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:14:07,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:14:07,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:14:07,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:14:07,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:14:07,087 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:14:07,087 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:14:07,087 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:14:07,087 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:14:07,087 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:14:07,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:14:07,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:14:07,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:14:07,089 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:14:07,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:14:07,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:14:07,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:14:07,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:14:07,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:14:07,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:14:07,090 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:14:07,090 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_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2022-12-13 14:14:07,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:14:07,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:14:07,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:14:07,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:14:07,278 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:14:07,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-12-13 14:14:09,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:14:10,038 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:14:10,038 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-12-13 14:14:10,043 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/data/e391e9536/4d17a2a4cabe44179975400bbda32e5f/FLAGe7c1a5bc9 [2022-12-13 14:14:10,054 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/data/e391e9536/4d17a2a4cabe44179975400bbda32e5f [2022-12-13 14:14:10,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:14:10,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:14:10,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:14:10,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:14:10,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:14:10,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6a4283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10, skipping insertion in model container [2022-12-13 14:14:10,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:14:10,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:14:10,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:14:10,202 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:14:10,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:14:10,222 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:14:10,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10 WrapperNode [2022-12-13 14:14:10,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:14:10,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:14:10,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:14:10,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:14:10,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,244 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-12-13 14:14:10,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:14:10,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:14:10,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:14:10,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:14:10,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:14:10,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:14:10,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:14:10,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:14:10,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (1/1) ... [2022-12-13 14:14:10,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:10,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:10,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:14:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:14:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:14:10,374 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:14:10,376 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:14:10,423 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:14:10,428 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:14:10,428 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:14:10,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:14:10 BoogieIcfgContainer [2022-12-13 14:14:10,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:14:10,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:14:10,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:14:10,433 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:14:10,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:14:10,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:14:10" (1/3) ... [2022-12-13 14:14:10,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c24e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:14:10, skipping insertion in model container [2022-12-13 14:14:10,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:14:10,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:14:10" (2/3) ... [2022-12-13 14:14:10,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c24e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:14:10, skipping insertion in model container [2022-12-13 14:14:10,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:14:10,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:14:10" (3/3) ... [2022-12-13 14:14:10,437 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2022-12-13 14:14:10,480 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:14:10,480 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:14:10,480 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:14:10,480 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:14:10,480 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:14:10,480 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:14:10,481 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:14:10,481 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:14:10,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:10,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 14:14:10,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:10,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:10,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 14:14:10,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:10,502 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 14:14:10,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:10,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 14:14:10,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:10,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:10,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 14:14:10,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:10,509 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L25-2true [2022-12-13 14:14:10,509 INFO L750 eck$LassoCheckResult]: Loop: 3#L25-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 7#L25true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 9#L33true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 11#L33-2true main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L25-2true [2022-12-13 14:14:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 14:14:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:10,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773530089] [2022-12-13 14:14:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:10,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2022-12-13 14:14:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:10,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764147281] [2022-12-13 14:14:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:10,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:10,611 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2022-12-13 14:14:10,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:10,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236734535] [2022-12-13 14:14:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:10,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:10,701 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:10,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:10,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:10,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:10,702 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:10,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:10,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:10,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-12-13 14:14:10,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:10,703 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:10,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,738 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,815 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:10,816 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:10,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:10,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:10,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 14:14:10,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:10,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:10,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:10,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:10,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:10,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 14:14:10,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:10,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:10,872 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:10,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 14:14:10,876 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:10,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:10,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:10,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:10,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:10,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:10,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:10,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-12-13 14:14:10,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:10,877 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:10,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,891 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:10,938 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:10,941 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:10,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:10,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:10,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 14:14:10,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:10,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:10,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:10,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:10,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:10,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:10,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:10,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:10,964 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:10,970 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 14:14:10,970 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 14:14:10,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:10,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:10,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:10,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 14:14:10,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:10,998 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:10,998 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:10,998 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 14:14:11,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 14:14:11,003 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:11,023 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:11,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:11,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:11,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:11,117 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:11,118 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,160 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 38 states and 51 transitions. Complement of second has 8 states. [2022-12-13 14:14:11,162 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 [2022-12-13 14:14:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-13 14:14:11,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 14:14:11,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-12-13 14:14:11,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-12-13 14:14:11,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2022-12-13 14:14:11,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 14:14:11,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2022-12-13 14:14:11,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-12-13 14:14:11,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-12-13 14:14:11,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2022-12-13 14:14:11,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:11,179 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2022-12-13 14:14:11,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2022-12-13 14:14:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2022-12-13 14:14:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-12-13 14:14:11,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-12-13 14:14:11,198 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-12-13 14:14:11,199 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 14:14:11,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2022-12-13 14:14:11,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-12-13 14:14:11,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:11,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:11,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 14:14:11,200 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:11,200 INFO L748 eck$LassoCheckResult]: Stem: 104#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 109#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 97#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 102#L26 [2022-12-13 14:14:11,200 INFO L750 eck$LassoCheckResult]: Loop: 102#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 100#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 101#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 110#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 102#L26 [2022-12-13 14:14:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,201 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-12-13 14:14:11,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667035522] [2022-12-13 14:14:11,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2022-12-13 14:14:11,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865889168] [2022-12-13 14:14:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2022-12-13 14:14:11,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158682095] [2022-12-13 14:14:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,260 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:11,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:11,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:11,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:11,260 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:11,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:11,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:11,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-12-13 14:14:11,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:11,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:11,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,267 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,314 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:11,314 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:11,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 14:14:11,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:11,339 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:11,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 14:14:11,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,344 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 14:14:11,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:11,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:11,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 14:14:11,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,368 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 14:14:11,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:11,389 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:11,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 14:14:11,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,393 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 14:14:11,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 14:14:11,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,422 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 14:14:11,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:11,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,546 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:11,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:11,550 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:11,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:11,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:11,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:11,550 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:11,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:11,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:11,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-12-13 14:14:11,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:11,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:11,552 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 14:14:11,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:11,616 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:11,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 14:14:11,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:11,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:11,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:11,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:11,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:11,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:11,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:11,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:11,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 14:14:11,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,643 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 14:14:11,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:11,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:11,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:11,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:11,656 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 14:14:11,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:11,657 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 14:14:11,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:11,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:11,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 14:14:11,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,664 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 14:14:11,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:11,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:11,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:11,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:11,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:11,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:11,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:11,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:11,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 14:14:11,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,688 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 14:14:11,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:11,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:11,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:11,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:11,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:11,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:11,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:11,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:11,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:11,710 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:11,710 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:11,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,712 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 14:14:11,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:11,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:11,714 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:11,714 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:11,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 14:14:11,718 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:11,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:11,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:11,738 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:14:11,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:11,762 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:11,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,787 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 55 transitions. Complement of second has 7 states. [2022-12-13 14:14:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 14:14:11,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2022-12-13 14:14:11,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2022-12-13 14:14:11,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2022-12-13 14:14:11,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:11,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2022-12-13 14:14:11,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-12-13 14:14:11,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2022-12-13 14:14:11,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-12-13 14:14:11,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-12-13 14:14:11,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2022-12-13 14:14:11,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:11,793 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2022-12-13 14:14:11,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2022-12-13 14:14:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-12-13 14:14:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2022-12-13 14:14:11,797 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-12-13 14:14:11,797 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-12-13 14:14:11,797 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 14:14:11,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2022-12-13 14:14:11,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-12-13 14:14:11,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:11,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:11,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 14:14:11,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:11,798 INFO L748 eck$LassoCheckResult]: Stem: 206#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 215#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 217#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 218#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 211#L26-2 [2022-12-13 14:14:11,798 INFO L750 eck$LassoCheckResult]: Loop: 211#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 222#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 202#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 204#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 211#L26-2 [2022-12-13 14:14:11,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,799 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2022-12-13 14:14:11,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082578750] [2022-12-13 14:14:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2022-12-13 14:14:11,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528193920] [2022-12-13 14:14:11,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2022-12-13 14:14:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:11,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607703278] [2022-12-13 14:14:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:11,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:11,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:11,855 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:11,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:11,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:11,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:11,855 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:11,855 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,855 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:11,855 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:11,856 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-12-13 14:14:11,856 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:11,856 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:11,857 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:11,903 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:11,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,905 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 14:14:11,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,924 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:11,924 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:11,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 14:14:11,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,927 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 14:14:11,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:11,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 14:14:11,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:11,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:11,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 14:14:11,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:11,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:11,970 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:11,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:11,973 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:11,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:11,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:11,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:11,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:11,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:11,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:11,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:11,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-12-13 14:14:11,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:11,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:11,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,981 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:11,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,020 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:12,020 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:12,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,021 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 14:14:12,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:12,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:12,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:12,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:12,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:12,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:12,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:12,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:12,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:12,042 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:12,042 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:12,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,043 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 14:14:12,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:12,045 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:12,045 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:12,045 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:12,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 14:14:12,049 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:12,084 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 14:14:12,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 90 transitions. Complement of second has 7 states. [2022-12-13 14:14:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-12-13 14:14:12,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2022-12-13 14:14:12,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2022-12-13 14:14:12,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2022-12-13 14:14:12,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2022-12-13 14:14:12,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-12-13 14:14:12,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2022-12-13 14:14:12,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-12-13 14:14:12,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-12-13 14:14:12,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2022-12-13 14:14:12,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:12,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2022-12-13 14:14:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2022-12-13 14:14:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-12-13 14:14:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 46 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2022-12-13 14:14:12,110 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-12-13 14:14:12,110 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-12-13 14:14:12,110 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 14:14:12,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2022-12-13 14:14:12,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-12-13 14:14:12,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:12,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:12,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:12,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:12,111 INFO L748 eck$LassoCheckResult]: Stem: 344#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 357#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 341#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 342#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 364#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 363#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 359#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 360#L33 [2022-12-13 14:14:12,111 INFO L750 eck$LassoCheckResult]: Loop: 360#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 354#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 339#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 379#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 360#L33 [2022-12-13 14:14:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2022-12-13 14:14:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969424023] [2022-12-13 14:14:12,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2022-12-13 14:14:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652618666] [2022-12-13 14:14:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,129 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2022-12-13 14:14:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323049794] [2022-12-13 14:14:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,167 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:12,167 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:12,167 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:12,167 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:12,167 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:12,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,167 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:12,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:12,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-12-13 14:14:12,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:12,168 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:12,169 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:12,217 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:12,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,218 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 14:14:12,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:12,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:12,237 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:12,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 14:14:12,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,241 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 14:14:12,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:12,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,255 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:12,255 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:12,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 14:14:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,259 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 14:14:12,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:12,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:12,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:12,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 14:14:12,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,282 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 14:14:12,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:12,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 14:14:12,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,299 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 14:14:12,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:12,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:12,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 14:14:12,406 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:12,406 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:12,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:12,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:12,407 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:12,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:12,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:12,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-12-13 14:14:12,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:12,407 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:12,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,410 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,412 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:12,457 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:12,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 14:14:12,460 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 [2022-12-13 14:14:12,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:12,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:12,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:12,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:12,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:12,471 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:12,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:12,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 14:14:12,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,479 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 14:14:12,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:12,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:12,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:12,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:12,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:12,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:12,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:12,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:12,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 14:14:12,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,500 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 14:14:12,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:12,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:12,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:12,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:12,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:12,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:12,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:12,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:12,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:12,519 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 14:14:12,519 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 14:14:12,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,520 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 14:14:12,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:12,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:12,522 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:12,522 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 14:14:12,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 14:14:12,525 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:12,565 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:12,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,587 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 163 transitions. Complement of second has 7 states. [2022-12-13 14:14:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 14:14:12,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2022-12-13 14:14:12,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:12,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2022-12-13 14:14:12,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2022-12-13 14:14:12,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-12-13 14:14:12,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2022-12-13 14:14:12,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-12-13 14:14:12,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-12-13 14:14:12,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2022-12-13 14:14:12,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:12,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2022-12-13 14:14:12,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2022-12-13 14:14:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2022-12-13 14:14:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.481012658227848) internal successors, (117), 78 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2022-12-13 14:14:12,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-12-13 14:14:12,595 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-12-13 14:14:12,595 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 14:14:12,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2022-12-13 14:14:12,596 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-12-13 14:14:12,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:12,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:12,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:12,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:12,597 INFO L748 eck$LassoCheckResult]: Stem: 561#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 562#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 572#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 608#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 607#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 605#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 604#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 601#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 602#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 580#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 579#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 575#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 576#L33 [2022-12-13 14:14:12,597 INFO L750 eck$LassoCheckResult]: Loop: 576#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 570#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 556#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 629#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 576#L33 [2022-12-13 14:14:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 1 times [2022-12-13 14:14:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258893505] [2022-12-13 14:14:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2022-12-13 14:14:12,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232373014] [2022-12-13 14:14:12,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2022-12-13 14:14:12,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:12,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365521258] [2022-12-13 14:14:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:12,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:12,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:12,646 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:12,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:12,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:12,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:12,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:12,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:12,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:12,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-12-13 14:14:12,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:12,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:12,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,659 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,685 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:12,685 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:12,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,686 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 14:14:12,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:12,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-12-13 14:14:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,703 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 14:14:12,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:12,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:12,807 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:12,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:12,810 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:12,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:12,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:12,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:12,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:12,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:12,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:12,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-12-13 14:14:12,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:12,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:12,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:12,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:12,857 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:12,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,858 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 14:14:12,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-12-13 14:14:12,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:12,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 14:14:12,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 14:14:12,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:12,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:12,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:12,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:12,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:12,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:12,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:12,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:12,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:12,885 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:12,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:12,886 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:12,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 14:14:12,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:12,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:12,888 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:12,888 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 14:14:12,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-12-13 14:14:12,891 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:12,927 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:12,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 163 transitions. Complement of second has 7 states. [2022-12-13 14:14:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 14:14:12,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:12,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:12,944 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:12,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:12,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:12,984 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:12,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 158 transitions. Complement of second has 7 states. [2022-12-13 14:14:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 14:14:13,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:13,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,004 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:13,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:13,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:13,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:13,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:13,047 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:13,047 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,066 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 189 transitions. Complement of second has 8 states. [2022-12-13 14:14:13,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 14:14:13,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:13,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 14:14:13,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2022-12-13 14:14:13,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 189 transitions. [2022-12-13 14:14:13,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2022-12-13 14:14:13,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 95 states and 142 transitions. [2022-12-13 14:14:13,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-12-13 14:14:13,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-12-13 14:14:13,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 142 transitions. [2022-12-13 14:14:13,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:13,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 142 transitions. [2022-12-13 14:14:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 142 transitions. [2022-12-13 14:14:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2022-12-13 14:14:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.509090909090909) internal successors, (83), 54 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2022-12-13 14:14:13,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 83 transitions. [2022-12-13 14:14:13,074 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 83 transitions. [2022-12-13 14:14:13,075 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 14:14:13,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 83 transitions. [2022-12-13 14:14:13,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2022-12-13 14:14:13,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:13,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:13,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:13,075 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:13,075 INFO L748 eck$LassoCheckResult]: Stem: 1171#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1182#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1167#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1168#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1188#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1186#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1183#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1184#L33 [2022-12-13 14:14:13,075 INFO L750 eck$LassoCheckResult]: Loop: 1184#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 1180#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1181#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1198#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1205#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1206#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1209#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1208#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1184#L33 [2022-12-13 14:14:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,076 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 2 times [2022-12-13 14:14:13,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067887972] [2022-12-13 14:14:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2022-12-13 14:14:13,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47516739] [2022-12-13 14:14:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash 576410797, now seen corresponding path program 2 times [2022-12-13 14:14:13,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304682351] [2022-12-13 14:14:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,150 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:13,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:13,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:13,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:13,150 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:13,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,150 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:13,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:13,150 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-12-13 14:14:13,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:13,150 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:13,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,153 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:13,208 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:13,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,209 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 14:14:13,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:13,223 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:13,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-12-13 14:14:13,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,226 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 14:14:13,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:13,246 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:13,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 14:14:13,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,249 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 14:14:13,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:13,269 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:13,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-12-13 14:14:13,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,273 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 14:14:13,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:13,292 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:13,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:13,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,296 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 14:14:13,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 14:14:13,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,321 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-12-13 14:14:13,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:13,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,455 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:13,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-12-13 14:14:13,458 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:13,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:13,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:13,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:13,458 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:13,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:13,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:13,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-12-13 14:14:13,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:13,458 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:13,459 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,503 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:13,503 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:13,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,504 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-12-13 14:14:13,506 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 [2022-12-13 14:14:13,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:13,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:13,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:13,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:13,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:13,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-12-13 14:14:13,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,524 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-12-13 14:14:13,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:13,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:13,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:13,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:13,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:13,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:13,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:13,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-12-13 14:14:13,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,541 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-12-13 14:14:13,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:13,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:13,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,553 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 14:14:13,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:13,554 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 14:14:13,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:13,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:13,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-12-13 14:14:13,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,559 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-12-13 14:14:13,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:13,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:13,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:13,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:13,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:13,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:13,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-12-13 14:14:13,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,579 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-12-13 14:14:13,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:13,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:13,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:13,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:13,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:13,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:13,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:13,598 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 14:14:13,598 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 14:14:13,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,599 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-12-13 14:14:13,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:13,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:13,601 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:13,601 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:13,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-12-13 14:14:13,604 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:13,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:13,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:13,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:14:13,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:13,651 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 14:14:13,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 83 transitions. cyclomatic complexity: 35. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 241 states and 359 transitions. Complement of second has 13 states. [2022-12-13 14:14:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-12-13 14:14:13,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-12-13 14:14:13,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-12-13 14:14:13,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-12-13 14:14:13,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:13,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 359 transitions. [2022-12-13 14:14:13,697 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2022-12-13 14:14:13,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 203 states and 306 transitions. [2022-12-13 14:14:13,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-12-13 14:14:13,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-12-13 14:14:13,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 306 transitions. [2022-12-13 14:14:13,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:13,698 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 306 transitions. [2022-12-13 14:14:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 306 transitions. [2022-12-13 14:14:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 184. [2022-12-13 14:14:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.5108695652173914) internal successors, (278), 183 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 278 transitions. [2022-12-13 14:14:13,706 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 278 transitions. [2022-12-13 14:14:13,706 INFO L428 stractBuchiCegarLoop]: Abstraction has 184 states and 278 transitions. [2022-12-13 14:14:13,706 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 14:14:13,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 278 transitions. [2022-12-13 14:14:13,706 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2022-12-13 14:14:13,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:13,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:13,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:13,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:13,707 INFO L748 eck$LassoCheckResult]: Stem: 1551#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1561#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1547#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1548#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1571#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1635#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1630#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1628#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1629#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1642#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1637#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1626#L26 [2022-12-13 14:14:13,707 INFO L750 eck$LassoCheckResult]: Loop: 1626#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1627#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1645#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1646#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1626#L26 [2022-12-13 14:14:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 2 times [2022-12-13 14:14:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940798542] [2022-12-13 14:14:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2022-12-13 14:14:13,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721425910] [2022-12-13 14:14:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 3 times [2022-12-13 14:14:13,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:13,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218918247] [2022-12-13 14:14:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:13,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:13,748 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:13,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:13,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:13,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:13,748 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:13,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:13,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:13,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-12-13 14:14:13,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:13,748 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:13,749 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,756 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,759 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,792 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:13,793 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:13,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,794 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-12-13 14:14:13,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:13,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-12-13 14:14:13,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,818 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-12-13 14:14:13,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:13,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:13,935 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:13,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-12-13 14:14:13,938 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:13,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:13,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:13,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:13,938 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:13,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:13,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:13,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-12-13 14:14:13,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:13,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:13,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,949 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,950 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:13,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:13,986 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:13,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:13,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:13,987 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:13,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-12-13 14:14:13,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:13,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:13,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:13,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:13,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:13,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:14,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:14,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:14,002 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:14,005 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 14:14:14,005 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 14:14:14,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,006 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-12-13 14:14:14,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:14,008 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:14,008 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:14,008 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:14,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-12-13 14:14:14,011 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:14,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,033 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:14,050 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:14,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 326 states and 474 transitions. Complement of second has 7 states. [2022-12-13 14:14:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 14:14:14,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:14,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,069 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:14,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-12-13 14:14:14,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-12-13 14:14:14,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-12-13 14:14:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,102 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:14,120 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:14,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 346 states and 499 transitions. Complement of second has 9 states. [2022-12-13 14:14:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-12-13 14:14:14,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:14,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,144 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,168 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:14,185 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:14,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 184 states and 278 transitions. cyclomatic complexity: 117. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 424 states and 646 transitions. Complement of second has 9 states. [2022-12-13 14:14:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-12-13 14:14:14,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 14:14:14,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 14:14:14,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-12-13 14:14:14,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 424 states and 646 transitions. [2022-12-13 14:14:14,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2022-12-13 14:14:14,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 424 states to 284 states and 418 transitions. [2022-12-13 14:14:14,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-12-13 14:14:14,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2022-12-13 14:14:14,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 418 transitions. [2022-12-13 14:14:14,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:14,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 418 transitions. [2022-12-13 14:14:14,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 418 transitions. [2022-12-13 14:14:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2022-12-13 14:14:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.5176991150442478) internal successors, (343), 225 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 343 transitions. [2022-12-13 14:14:14,216 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 343 transitions. [2022-12-13 14:14:14,216 INFO L428 stractBuchiCegarLoop]: Abstraction has 226 states and 343 transitions. [2022-12-13 14:14:14,216 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-12-13 14:14:14,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 343 transitions. [2022-12-13 14:14:14,217 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2022-12-13 14:14:14,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:14,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:14,217 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:14,217 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:14,218 INFO L748 eck$LassoCheckResult]: Stem: 3021#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3022#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3031#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3017#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3018#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3124#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3123#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3117#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3116#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3084#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3083#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3080#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3082#L26 [2022-12-13 14:14:14,218 INFO L750 eck$LassoCheckResult]: Loop: 3082#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 3101#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3100#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3098#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3081#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 3084#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3083#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3080#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 3082#L26 [2022-12-13 14:14:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,218 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 4 times [2022-12-13 14:14:14,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027393415] [2022-12-13 14:14:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash -449776328, now seen corresponding path program 2 times [2022-12-13 14:14:14,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787792313] [2022-12-13 14:14:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,231 INFO L85 PathProgramCache]: Analyzing trace with hash 898024594, now seen corresponding path program 2 times [2022-12-13 14:14:14,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065043740] [2022-12-13 14:14:14,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,288 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:14,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:14,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:14,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:14,288 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:14,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:14,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:14,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-12-13 14:14:14,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:14,288 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:14,289 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,341 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:14,341 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:14,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,342 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-12-13 14:14:14,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:14,361 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:14,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-12-13 14:14:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,364 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-12-13 14:14:14,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:14,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:14,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:14,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,386 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-12-13 14:14:14,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2022-12-13 14:14:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,404 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-12-13 14:14:14,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:14,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,508 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:14,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:14,511 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:14,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:14,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:14,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:14,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:14,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:14,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:14,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-12-13 14:14:14,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:14,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:14,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,522 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,557 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:14,557 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:14,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,558 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-12-13 14:14:14,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:14,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:14,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:14,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:14,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:14,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:14,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:14,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:14,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:14,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,578 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-12-13 14:14:14,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:14,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:14,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:14,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:14,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:14,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:14,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:14,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:14,594 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:14,597 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:14,597 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:14,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,598 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-12-13 14:14:14,600 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:14,600 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:14,600 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:14,600 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 14:14:14,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-12-13 14:14:14,602 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:14,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:14:14,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:14,649 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 14:14:14,649 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 343 transitions. cyclomatic complexity: 140. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 582 states and 900 transitions. Complement of second has 12 states. [2022-12-13 14:14:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2022-12-13 14:14:14,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 8 letters. [2022-12-13 14:14:14,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 20 letters. Loop has 8 letters. [2022-12-13 14:14:14,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 12 letters. Loop has 16 letters. [2022-12-13 14:14:14,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:14,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 900 transitions. [2022-12-13 14:14:14,697 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2022-12-13 14:14:14,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 544 states and 832 transitions. [2022-12-13 14:14:14,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-12-13 14:14:14,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-12-13 14:14:14,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 544 states and 832 transitions. [2022-12-13 14:14:14,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:14,700 INFO L218 hiAutomatonCegarLoop]: Abstraction has 544 states and 832 transitions. [2022-12-13 14:14:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states and 832 transitions. [2022-12-13 14:14:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2022-12-13 14:14:14,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 405 states have (on average 1.5901234567901235) internal successors, (644), 404 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 644 transitions. [2022-12-13 14:14:14,709 INFO L240 hiAutomatonCegarLoop]: Abstraction has 405 states and 644 transitions. [2022-12-13 14:14:14,709 INFO L428 stractBuchiCegarLoop]: Abstraction has 405 states and 644 transitions. [2022-12-13 14:14:14,709 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-12-13 14:14:14,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 405 states and 644 transitions. [2022-12-13 14:14:14,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-12-13 14:14:14,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:14,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:14,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:14,710 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:14,711 INFO L748 eck$LassoCheckResult]: Stem: 3925#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3926#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3935#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3981#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4005#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 3996#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3964#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 3940#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3927#L33 [2022-12-13 14:14:14,711 INFO L750 eck$LassoCheckResult]: Loop: 3927#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 3928#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4167#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4168#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4169#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 4143#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4164#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4163#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 3927#L33 [2022-12-13 14:14:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2022-12-13 14:14:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055349114] [2022-12-13 14:14:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,716 INFO L85 PathProgramCache]: Analyzing trace with hash 930337844, now seen corresponding path program 1 times [2022-12-13 14:14:14,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416918485] [2022-12-13 14:14:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash 25289191, now seen corresponding path program 1 times [2022-12-13 14:14:14,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:14,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440226048] [2022-12-13 14:14:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:14,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:14,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:14,775 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:14,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:14,775 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:14,775 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:14,775 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:14,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:14,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:14,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-12-13 14:14:14,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:14,776 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:14,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,790 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:14,831 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:14,831 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:14,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,832 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-12-13 14:14:14,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:14,852 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:14,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-12-13 14:14:14,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,855 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-12-13 14:14:14,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:14,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:14,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-12-13 14:14:14,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,872 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-12-13 14:14:14,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:14,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:14,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:14,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:14,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:14,896 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:14,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-12-13 14:14:14,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:14,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:15,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:15,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2022-12-13 14:14:15,019 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:15,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:15,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:15,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:15,019 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:15,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:15,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:15,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-12-13 14:14:15,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:15,019 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:15,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:15,060 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:15,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,061 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-12-13 14:14:15,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:15,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,073 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 14:14:15,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,074 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 14:14:15,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:15,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:15,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-12-13 14:14:15,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,078 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-12-13 14:14:15,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:15,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:15,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:15,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:15,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-12-13 14:14:15,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,098 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-12-13 14:14:15,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:15,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:15,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:15,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:15,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:15,119 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:15,119 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:15,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,120 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-12-13 14:14:15,122 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:15,122 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:15,122 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:15,122 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:15,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:15,125 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:15,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:15,175 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 14:14:15,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:15,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 405 states and 644 transitions. cyclomatic complexity: 278. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1086 states and 1724 transitions. Complement of second has 12 states. [2022-12-13 14:14:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-12-13 14:14:15,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-12-13 14:14:15,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-12-13 14:14:15,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-12-13 14:14:15,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1086 states and 1724 transitions. [2022-12-13 14:14:15,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-12-13 14:14:15,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2022-12-13 14:14:15,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 14:14:15,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1086 states to 677 states and 1020 transitions. [2022-12-13 14:14:15,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-12-13 14:14:15,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-12-13 14:14:15,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 677 states and 1020 transitions. [2022-12-13 14:14:15,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:14:15,251 INFO L218 hiAutomatonCegarLoop]: Abstraction has 677 states and 1020 transitions. [2022-12-13 14:14:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states and 1020 transitions. [2022-12-13 14:14:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 463. [2022-12-13 14:14:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 463 states have (on average 1.57451403887689) internal successors, (729), 462 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:14:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 729 transitions. [2022-12-13 14:14:15,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 463 states and 729 transitions. [2022-12-13 14:14:15,259 INFO L428 stractBuchiCegarLoop]: Abstraction has 463 states and 729 transitions. [2022-12-13 14:14:15,259 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-12-13 14:14:15,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 463 states and 729 transitions. [2022-12-13 14:14:15,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 14:14:15,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:14:15,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:14:15,261 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:15,261 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 14:14:15,261 INFO L748 eck$LassoCheckResult]: Stem: 5498#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 5499#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5510#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5524#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5516#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5513#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5512#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5511#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5500#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 5501#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5695#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5691#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5685#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 5682#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5675#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5676#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5495#L26 [2022-12-13 14:14:15,261 INFO L750 eck$LassoCheckResult]: Loop: 5495#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5531#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5526#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5494#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5495#L26 [2022-12-13 14:14:15,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash 25229600, now seen corresponding path program 1 times [2022-12-13 14:14:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:15,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570153494] [2022-12-13 14:14:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:15,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2022-12-13 14:14:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:15,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911796430] [2022-12-13 14:14:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:15,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,274 INFO L85 PathProgramCache]: Analyzing trace with hash -131572635, now seen corresponding path program 2 times [2022-12-13 14:14:15,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:15,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157477510] [2022-12-13 14:14:15,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:15,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:14:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:14:15,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:14:15,308 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:15,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:15,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:15,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:15,308 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:14:15,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:15,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:15,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-12-13 14:14:15,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:15,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:15,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,320 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,351 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:15,351 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:14:15,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,352 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-12-13 14:14:15,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:15,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:15,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:14:15,371 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 14:14:15,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-12-13 14:14:15,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,375 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-12-13 14:14:15,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:14:15,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:15,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2022-12-13 14:14:15,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,390 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-12-13 14:14:15,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:14:15,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:14:15,492 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:14:15,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2022-12-13 14:14:15,495 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:14:15,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:14:15,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:14:15,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:14:15,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:14:15,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:14:15,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:14:15,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-12-13 14:14:15,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:14:15,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:14:15,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:14:15,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:14:15,530 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:14:15,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,531 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-12-13 14:14:15,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:15,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,542 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 14:14:15,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,543 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 14:14:15,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:15,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:15,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2022-12-13 14:14:15,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,548 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-12-13 14:14:15,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:15,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:15,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:15,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:15,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-12-13 14:14:15,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,568 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-12-13 14:14:15,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:15,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:14:15,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:14:15,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:14:15,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2022-12-13 14:14:15,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,589 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-12-13 14:14:15,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:14:15,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:14:15,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:14:15,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:14:15,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:14:15,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:14:15,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:14:15,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:14:15,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:14:15,609 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 14:14:15,609 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 14:14:15,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:14:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:14:15,610 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:14:15,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-12-13 14:14:15,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:14:15,612 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:14:15,612 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:14:15,612 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 14:14:15,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-12-13 14:14:15,614 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:14:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:15,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:15,653 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 684 states and 1050 transitions. Complement of second has 7 states. [2022-12-13 14:14:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 14:14:15,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 14:14:15,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,669 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:15,706 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:15,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 694 states and 1033 transitions. Complement of second has 7 states. [2022-12-13 14:14:15,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 14:14:15,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 14:14:15,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,725 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 14:14:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:15,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:14:15,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:14:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:14:15,767 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 14:14:15,767 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 463 states and 729 transitions. cyclomatic complexity: 314. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 807 states and 1314 transitions. Complement of second has 8 states. [2022-12-13 14:14:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 14:14:15,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 14:14:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 14:14:15,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 14:14:15,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2022-12-13 14:14:15,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2022-12-13 14:14:15,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:14:15,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1314 transitions. [2022-12-13 14:14:15,786 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 14:14:15,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 14:14:15,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 14:14:15,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:14:15,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-12-13 14:14:15,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 14:14:15,786 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 14:14:15,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 14:14:15,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 02:14:15 BoogieIcfgContainer [2022-12-13 14:14:15,793 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 14:14:15,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:14:15,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:14:15,793 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:14:15,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:14:10" (3/4) ... [2022-12-13 14:14:15,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:14:15,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:14:15,796 INFO L158 Benchmark]: Toolchain (without parser) took 5739.93ms. Allocated memory is still 195.0MB. Free memory was 157.5MB in the beginning and 98.3MB in the end (delta: 59.1MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-12-13 14:14:15,796 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:14:15,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.02ms. Allocated memory is still 195.0MB. Free memory was 157.5MB in the beginning and 147.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:14:15,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.33ms. Allocated memory is still 195.0MB. Free memory was 147.7MB in the beginning and 146.8MB in the end (delta: 856.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:14:15,797 INFO L158 Benchmark]: Boogie Preprocessor took 13.50ms. Allocated memory is still 195.0MB. Free memory was 146.8MB in the beginning and 145.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:14:15,797 INFO L158 Benchmark]: RCFGBuilder took 170.96ms. Allocated memory is still 195.0MB. Free memory was 145.7MB in the beginning and 136.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 14:14:15,797 INFO L158 Benchmark]: BuchiAutomizer took 5362.39ms. Allocated memory is still 195.0MB. Free memory was 136.5MB in the beginning and 98.3MB in the end (delta: 38.1MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-12-13 14:14:15,798 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 195.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:14:15,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.02ms. Allocated memory is still 195.0MB. Free memory was 157.5MB in the beginning and 147.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.33ms. Allocated memory is still 195.0MB. Free memory was 147.7MB in the beginning and 146.8MB in the end (delta: 856.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.50ms. Allocated memory is still 195.0MB. Free memory was 146.8MB in the beginning and 145.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 170.96ms. Allocated memory is still 195.0MB. Free memory was 145.7MB in the beginning and 136.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5362.39ms. Allocated memory is still 195.0MB. Free memory was 136.5MB in the beginning and 98.3MB in the end (delta: 38.1MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 195.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function x and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 494 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 311 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 207 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax149 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf93 smp100 dnf100 smp100 tf107 neg98 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 14:14:15,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-12-13 14:14:16,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2b2b83-8288-4681-92c2-37a8e76d9be9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE