./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 15:51:45,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:51:45,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:51:46,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:51:46,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:51:46,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:51:46,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:51:46,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:51:46,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:51:46,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:51:46,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:51:46,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:51:46,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:51:46,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:51:46,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:51:46,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:51:46,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:51:46,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:51:46,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:51:46,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:51:46,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:51:46,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:51:46,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:51:46,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:51:46,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:51:46,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:51:46,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:51:46,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:51:46,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:51:46,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:51:46,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:51:46,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:51:46,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:51:46,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:51:46,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:51:46,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:51:46,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:51:46,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:51:46,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:51:46,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:51:46,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:51:46,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 15:51:46,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:51:46,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:51:46,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:51:46,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:51:46,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:51:46,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:51:46,132 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:51:46,132 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 15:51:46,132 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 15:51:46,133 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 15:51:46,134 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 15:51:46,134 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 15:51:46,134 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 15:51:46,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:51:46,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:51:46,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:51:46,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:51:46,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 15:51:46,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 15:51:46,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 15:51:46,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:51:46,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 15:51:46,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:51:46,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 15:51:46,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:51:46,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:51:46,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:51:46,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:51:46,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 15:51:46,139 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_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2022-11-25 15:51:46,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:51:46,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:51:46,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:51:46,451 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:51:46,451 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:51:46,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-25 15:51:49,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:51:49,796 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:51:49,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-25 15:51:49,803 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/data/c2d5c4932/d8f0e102829f4eae8f917cde24e035c2/FLAG5ed3b7791 [2022-11-25 15:51:49,818 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/data/c2d5c4932/d8f0e102829f4eae8f917cde24e035c2 [2022-11-25 15:51:49,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:51:49,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:51:49,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:51:49,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:51:49,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:51:49,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:51:49" (1/1) ... [2022-11-25 15:51:49,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8c6cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:49, skipping insertion in model container [2022-11-25 15:51:49,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:51:49" (1/1) ... [2022-11-25 15:51:49,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:51:49,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:51:50,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:51:50,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:51:50,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:51:50,034 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:51:50,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50 WrapperNode [2022-11-25 15:51:50,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:51:50,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:51:50,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:51:50,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:51:50,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,065 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-25 15:51:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:51:50,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:51:50,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:51:50,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:51:50,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:51:50,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:51:50,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:51:50,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:51:50,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (1/1) ... [2022-11-25 15:51:50,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:50,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:50,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 15:51:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:51:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:51:50,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:51:50,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:51:50,329 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:51:50,336 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:51:50,337 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:51:50,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:51:50 BoogieIcfgContainer [2022-11-25 15:51:50,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:51:50,343 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 15:51:50,343 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 15:51:50,347 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 15:51:50,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:51:50,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 03:51:49" (1/3) ... [2022-11-25 15:51:50,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@301f03df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:51:50, skipping insertion in model container [2022-11-25 15:51:50,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:51:50,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:50" (2/3) ... [2022-11-25 15:51:50,351 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@301f03df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:51:50, skipping insertion in model container [2022-11-25 15:51:50,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:51:50,351 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:51:50" (3/3) ... [2022-11-25 15:51:50,353 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2022-11-25 15:51:50,415 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 15:51:50,416 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 15:51:50,416 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 15:51:50,416 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 15:51:50,416 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 15:51:50,417 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 15:51:50,417 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 15:51:50,417 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 15:51:50,421 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) [2022-11-25 15:51:50,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-25 15:51:50,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:50,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:50,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 15:51:50,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:50,452 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 15:51:50,452 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) [2022-11-25 15:51:50,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-25 15:51:50,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:50,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:50,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 15:51:50,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:50,463 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue 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 [2022-11-25 15:51:50,465 INFO L750 eck$LassoCheckResult]: Loop: 3#L25-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 8#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 [2022-11-25 15:51:50,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:50,479 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 15:51:50,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:50,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812142302] [2022-11-25 15:51:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2022-11-25 15:51:50,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:50,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486183782] [2022-11-25 15:51:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:50,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:50,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2022-11-25 15:51:50,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:50,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369902552] [2022-11-25 15:51:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:50,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:50,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:50,772 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:50,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:50,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:50,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:50,774 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:50,774 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:50,774 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:50,774 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:50,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-25 15:51:50,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:50,775 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:50,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:50,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:50,869 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:50,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:50,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:50,991 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:50,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:50,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 15:51:51,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:51,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:51,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-25 15:51:51,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:51,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:51,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 15:51:51,108 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:51,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:51,119 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:51,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:51,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:51,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:51,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:51,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:51,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:51,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-25 15:51:51,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:51,121 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:51,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,138 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:51,249 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:51,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:51,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:51,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:51,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:51,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:51,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:51,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 15:51:51,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:51,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:51,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:51,316 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 15:51:51,316 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:51:51,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,349 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:51,349 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:51,350 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:51,350 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 [] [2022-11-25 15:51:51,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 15:51:51,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:51,358 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:51,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:51,405 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:51,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:51,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:51,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:51,556 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 [2022-11-25 15:51:51,559 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) [2022-11-25 15:51:51,623 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. [2022-11-25 15:51:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 15:51:51,632 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) [2022-11-25 15:51:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-25 15:51:51,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-25 15:51:51,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:51,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-25 15:51:51,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:51,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-25 15:51:51,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:51,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2022-11-25 15:51:51,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-25 15:51:51,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2022-11-25 15:51:51,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-25 15:51:51,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-25 15:51:51,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2022-11-25 15:51:51,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:51,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2022-11-25 15:51:51,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:51,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2022-11-25 15:51:51,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2022-11-25 15:51:51,724 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) [2022-11-25 15:51:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-11-25 15:51:51,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-25 15:51:51,726 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-25 15:51:51,726 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 15:51:51,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2022-11-25 15:51:51,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-25 15:51:51,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:51,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:51,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-25 15:51:51,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:51,730 INFO L748 eck$LassoCheckResult]: Stem: 100#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 101#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; 104#L26 [2022-11-25 15:51:51,730 INFO L750 eck$LassoCheckResult]: Loop: 104#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 102#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 103#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; 104#L26 [2022-11-25 15:51:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-25 15:51:51,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032697188] [2022-11-25 15:51:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:51,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2022-11-25 15:51:51,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:51,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967572709] [2022-11-25 15:51:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:51,762 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2022-11-25 15:51:51,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:51,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303790048] [2022-11-25 15:51:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:51,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:51,815 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:51,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:51,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:51,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:51,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:51,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:51,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:51,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-25 15:51:51,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:51,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:51,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:51,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:51,917 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:51,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,919 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:51,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:51,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 15:51:51,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:51,948 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: [] [2022-11-25 15:51:51,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-25 15:51:51,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:51,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:51,959 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:51,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 15:51:51,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:51,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:52,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:52,001 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: [] [2022-11-25 15:51:52,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,013 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:52,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:52,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 15:51:52,042 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:52,042 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: [] [2022-11-25 15:51:52,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,051 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:52,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:52,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 15:51:52,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 15:51:52,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:52,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:52,267 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:52,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,271 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:52,272 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:52,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:52,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:52,272 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:52,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:52,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:52,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-25 15:51:52,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:52,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:52,274 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,292 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,381 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:52,381 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:52,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,383 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:52,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:52,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:52,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:52,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:52,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:52,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:52,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 15:51:52,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:52,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,440 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:52,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:52,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:52,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:52,465 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 15:51:52,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:52,467 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 15:51:52,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:52,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 15:51:52,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:52,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,501 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:52,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 15:51:52,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:52,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:52,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:52,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:52,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:52,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:52,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:52,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:52,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:52,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:52,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:52,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:52,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:52,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-25 15:51:52,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:52,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:52,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:52,631 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:51:52,631 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 15:51:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 15:51:52,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:52,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:52,647 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:52,647 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 [] [2022-11-25 15:51:52,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,657 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:52,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:52,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:52,702 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:52,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:52,740 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 [2022-11-25 15:51:52,740 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) [2022-11-25 15:51:52,781 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. [2022-11-25 15:51:52,781 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 [2022-11-25 15:51:52,782 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) [2022-11-25 15:51:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-25 15:51:52,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-25 15:51:52,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:52,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-25 15:51:52,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:52,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2022-11-25 15:51:52,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:52,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2022-11-25 15:51:52,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-25 15:51:52,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2022-11-25 15:51:52,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-25 15:51:52,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-25 15:51:52,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2022-11-25 15:51:52,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:52,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2022-11-25 15:51:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2022-11-25 15:51:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-11-25 15:51:52,801 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) [2022-11-25 15:51:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2022-11-25 15:51:52,807 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-25 15:51:52,807 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-25 15:51:52,807 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 15:51:52,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2022-11-25 15:51:52,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-25 15:51:52,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:52,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:52,811 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-25 15:51:52,811 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:52,812 INFO L748 eck$LassoCheckResult]: Stem: 200#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 201#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; 216#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 218#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 219#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 212#L26-2 [2022-11-25 15:51:52,812 INFO L750 eck$LassoCheckResult]: Loop: 212#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); 204#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 206#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 212#L26-2 [2022-11-25 15:51:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:52,813 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2022-11-25 15:51:52,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:52,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789349976] [2022-11-25 15:51:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:52,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:52,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2022-11-25 15:51:52,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:52,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58438316] [2022-11-25 15:51:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:52,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:52,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2022-11-25 15:51:52,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:52,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997655613] [2022-11-25 15:51:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:52,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:52,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:52,935 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:52,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:52,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:52,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:52,936 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:52,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:52,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:52,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:52,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-25 15:51:52,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:52,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:52,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,943 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:52,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,018 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:53,018 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:53,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,019 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 15:51:53,048 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:53,048 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: [] [2022-11-25 15:51:53,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,054 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 15:51:53,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,092 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 15:51:53,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:53,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,141 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:53,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,147 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:53,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:53,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:53,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:53,148 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:53,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:53,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:53,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-25 15:51:53,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:53,148 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:53,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,177 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:53,234 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:53,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,235 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:53,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:53,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:53,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:53,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:53,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:53,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 15:51:53,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:53,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:53,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:53,285 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:51:53,285 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 15:51:53,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,291 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,303 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:53,303 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:53,303 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:53,303 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 [] [2022-11-25 15:51:53,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 15:51:53,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,314 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:53,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:53,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:53,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:53,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:53,379 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-25 15:51:53,380 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) [2022-11-25 15:51:53,404 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. [2022-11-25 15:51:53,405 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 [2022-11-25 15:51:53,406 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) [2022-11-25 15:51:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-25 15:51:53,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-25 15:51:53,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:53,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-25 15:51:53,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:53,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-25 15:51:53,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:53,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2022-11-25 15:51:53,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-25 15:51:53,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2022-11-25 15:51:53,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-25 15:51:53,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-11-25 15:51:53,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2022-11-25 15:51:53,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:53,410 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2022-11-25 15:51:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2022-11-25 15:51:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-25 15:51:53,413 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) [2022-11-25 15:51:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2022-11-25 15:51:53,414 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-25 15:51:53,414 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-25 15:51:53,414 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 15:51:53,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2022-11-25 15:51:53,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-25 15:51:53,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:53,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:53,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:53,416 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:53,416 INFO L748 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 339#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; 356#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 343#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 344#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 363#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 362#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 358#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 359#L33 [2022-11-25 15:51:53,416 INFO L750 eck$LassoCheckResult]: Loop: 359#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 380#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 379#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 377#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 359#L33 [2022-11-25 15:51:53,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2022-11-25 15:51:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682370599] [2022-11-25 15:51:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:53,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:53,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2022-11-25 15:51:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:53,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144329971] [2022-11-25 15:51:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:53,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:53,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2022-11-25 15:51:53,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:53,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541186637] [2022-11-25 15:51:53,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:53,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:53,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,532 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:53,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:53,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:53,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:53,533 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:53,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:53,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:53,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-25 15:51:53,534 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:53,534 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:53,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,541 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,544 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,549 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,625 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:53,625 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:53,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,626 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-25 15:51:53,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:53,671 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: [] [2022-11-25 15:51:53,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,682 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-25 15:51:53,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:53,715 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: [] [2022-11-25 15:51:53,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,726 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-25 15:51:53,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:53,767 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: [] [2022-11-25 15:51:53,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,778 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:53,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-25 15:51:53,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:53,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:53,811 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:53,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:53,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:53,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-25 15:51:53,956 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:53,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-25 15:51:53,960 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:53,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:53,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:53,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:53,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:53,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:53,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:53,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:53,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-25 15:51:53,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:53,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:53,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,969 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:53,981 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,055 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:54,055 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:54,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,057 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-25 15:51:54,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:54,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:54,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:54,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:54,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:54,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:54,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:54,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:54,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,109 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:54,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:54,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:54,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:54,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:54,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-25 15:51:54,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:54,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:54,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:54,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,156 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:54,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:54,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:54,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:54,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:54,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:54,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-25 15:51:54,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:54,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:54,191 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:54,204 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 15:51:54,204 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:51:54,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,205 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,212 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:54,212 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:54,212 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:54,212 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 [] [2022-11-25 15:51:54,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-25 15:51:54,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,217 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:54,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:54,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:54,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:54,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:54,304 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 [2022-11-25 15:51:54,305 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) [2022-11-25 15:51:54,358 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. [2022-11-25 15:51:54,358 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 [2022-11-25 15:51:54,360 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) [2022-11-25 15:51:54,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-25 15:51:54,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-25 15:51:54,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:54,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:54,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:54,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-25 15:51:54,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:54,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2022-11-25 15:51:54,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-25 15:51:54,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2022-11-25 15:51:54,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-25 15:51:54,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-25 15:51:54,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2022-11-25 15:51:54,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:54,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2022-11-25 15:51:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2022-11-25 15:51:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2022-11-25 15:51:54,379 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) [2022-11-25 15:51:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2022-11-25 15:51:54,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-25 15:51:54,380 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-25 15:51:54,381 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-25 15:51:54,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2022-11-25 15:51:54,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-25 15:51:54,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:54,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:54,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:54,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:54,383 INFO L748 eck$LassoCheckResult]: Stem: 555#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 556#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); 561#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 562#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 588#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 586#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 581#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 566#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 567#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 553#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 554#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 623#L26 [2022-11-25 15:51:54,383 INFO L750 eck$LassoCheckResult]: Loop: 623#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 624#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 628#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 625#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 623#L26 [2022-11-25 15:51:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 1 times [2022-11-25 15:51:54,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:54,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746088577] [2022-11-25 15:51:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:54,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2022-11-25 15:51:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:54,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333641643] [2022-11-25 15:51:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 2 times [2022-11-25 15:51:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:54,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197606478] [2022-11-25 15:51:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:54,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:54,459 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:54,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:54,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:54,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:54,459 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:54,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:54,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:54,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-25 15:51:54,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:54,460 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:54,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,545 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:54,545 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,547 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-25 15:51:54,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:54,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:54,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,592 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-25 15:51:54,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:54,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:54,791 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:54,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,798 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:54,799 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:54,799 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:54,799 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:54,799 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:54,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:54,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:54,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-25 15:51:54,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:54,799 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:54,800 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,813 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:54,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:54,875 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:54,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,878 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:54,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:54,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:54,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:54,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:54,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:54,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:54,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:54,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-25 15:51:54,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:54,932 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 15:51:54,932 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:51:54,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:54,934 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:54,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:54,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:54,940 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:54,940 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 [] [2022-11-25 15:51:54,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-25 15:51:54,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:54,945 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:54,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:54,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:54,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:54,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:54,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,026 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 [2022-11-25 15:51:55,026 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) [2022-11-25 15:51:55,055 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 144 states and 211 transitions. Complement of second has 7 states. [2022-11-25 15:51:55,056 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 [2022-11-25 15:51:55,057 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) [2022-11-25 15:51:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-25 15:51:55,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:55,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,058 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,095 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,122 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 [2022-11-25 15:51:55,122 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) [2022-11-25 15:51:55,158 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 153 states and 226 transitions. Complement of second has 9 states. [2022-11-25 15:51:55,158 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 [2022-11-25 15:51:55,159 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) [2022-11-25 15:51:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-11-25 15:51:55,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:55,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,160 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,223 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 [2022-11-25 15:51:55,223 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) [2022-11-25 15:51:55,248 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 180 states and 272 transitions. Complement of second has 9 states. [2022-11-25 15:51:55,249 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 [2022-11-25 15:51:55,250 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) [2022-11-25 15:51:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-11-25 15:51:55,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:55,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-25 15:51:55,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-25 15:51:55,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 272 transitions. [2022-11-25 15:51:55,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-11-25 15:51:55,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 120 states and 176 transitions. [2022-11-25 15:51:55,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-25 15:51:55,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-25 15:51:55,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 176 transitions. [2022-11-25 15:51:55,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:55,257 INFO L218 hiAutomatonCegarLoop]: Abstraction has 120 states and 176 transitions. [2022-11-25 15:51:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 176 transitions. [2022-11-25 15:51:55,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2022-11-25 15:51:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.4893617021276595) internal successors, (140), 93 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 140 transitions. [2022-11-25 15:51:55,264 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-25 15:51:55,264 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-25 15:51:55,264 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-25 15:51:55,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 140 transitions. [2022-11-25 15:51:55,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2022-11-25 15:51:55,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:55,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:55,266 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:55,266 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:55,266 INFO L748 eck$LassoCheckResult]: Stem: 1302#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1303#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; 1320#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1337#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1335#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1330#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1328#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1326#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1323#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1324#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1362#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1361#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1346#L33 [2022-11-25 15:51:55,266 INFO L750 eck$LassoCheckResult]: Loop: 1346#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 1350#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1349#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1345#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1346#L33 [2022-11-25 15:51:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 3 times [2022-11-25 15:51:55,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:55,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753542924] [2022-11-25 15:51:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:55,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2022-11-25 15:51:55,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:55,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393380270] [2022-11-25 15:51:55,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:55,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:55,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2022-11-25 15:51:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:55,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543877318] [2022-11-25 15:51:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:55,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:55,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:55,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-11-25 15:51:55,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:55,384 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:55,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:55,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:55,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:55,385 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:55,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:55,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:55,385 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-25 15:51:55,385 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:55,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:55,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,399 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,406 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:55,463 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:55,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:55,464 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:55,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:55,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:55,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-25 15:51:55,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:55,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:55,500 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-25 15:51:55,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:55,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:55,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:55,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-11-25 15:51:55,631 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:55,631 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:55,631 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:55,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:55,632 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:55,632 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,632 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:55,632 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:55,632 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-25 15:51:55,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:55,632 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:55,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,649 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,653 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:55,713 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:55,713 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:55,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:55,715 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:55,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:55,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:55,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:55,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:55,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:55,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:55,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-25 15:51:55,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:55,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:55,759 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:55,762 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 15:51:55,762 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:51:55,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:55,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:55,763 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:55,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:55,769 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:55,769 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:55,769 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 [] [2022-11-25 15:51:55,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-25 15:51:55,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:55,775 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,847 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 [2022-11-25 15:51:55,847 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 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) [2022-11-25 15:51:55,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. 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 139 states and 214 transitions. Complement of second has 7 states. [2022-11-25 15:51:55,873 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 [2022-11-25 15:51:55,874 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) [2022-11-25 15:51:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-25 15:51:55,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:55,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,874 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:55,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,948 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 [2022-11-25 15:51:55,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 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) [2022-11-25 15:51:55,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. 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 135 states and 198 transitions. Complement of second has 7 states. [2022-11-25 15:51:55,980 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 [2022-11-25 15:51:55,981 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) [2022-11-25 15:51:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-25 15:51:55,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:55,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:55,982 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:55,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:56,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:51:56,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:56,040 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 [2022-11-25 15:51:56,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 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) [2022-11-25 15:51:56,061 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. 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 149 states and 234 transitions. Complement of second has 8 states. [2022-11-25 15:51:56,062 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 [2022-11-25 15:51:56,062 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) [2022-11-25 15:51:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-25 15:51:56,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-25 15:51:56,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:56,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-25 15:51:56,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:56,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-25 15:51:56,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:56,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 234 transitions. [2022-11-25 15:51:56,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2022-11-25 15:51:56,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 115 states and 174 transitions. [2022-11-25 15:51:56,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-25 15:51:56,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-25 15:51:56,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 174 transitions. [2022-11-25 15:51:56,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:56,068 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 174 transitions. [2022-11-25 15:51:56,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 174 transitions. [2022-11-25 15:51:56,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 89. [2022-11-25 15:51:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.550561797752809) internal successors, (138), 88 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2022-11-25 15:51:56,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-25 15:51:56,074 INFO L428 stractBuchiCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-25 15:51:56,074 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-25 15:51:56,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 138 transitions. [2022-11-25 15:51:56,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2022-11-25 15:51:56,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:56,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:56,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:56,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:56,076 INFO L748 eck$LassoCheckResult]: Stem: 2006#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2007#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; 2023#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2012#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2013#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 2033#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2028#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2024#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2015#L33 [2022-11-25 15:51:56,076 INFO L750 eck$LassoCheckResult]: Loop: 2015#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 2016#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2022#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2087#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2088#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2035#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2029#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2025#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2015#L33 [2022-11-25 15:51:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2022-11-25 15:51:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661843741] [2022-11-25 15:51:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:56,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2022-11-25 15:51:56,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668222665] [2022-11-25 15:51:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash 834576235, now seen corresponding path program 1 times [2022-11-25 15:51:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:56,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789680535] [2022-11-25 15:51:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:56,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:56,209 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:56,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:56,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:56,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:56,210 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:56,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:56,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:56,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-25 15:51:56,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:56,210 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:56,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:56,306 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:56,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,308 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:56,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:56,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-25 15:51:56,338 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:56,338 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:56,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,349 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:56,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:56,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-25 15:51:56,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:56,387 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: [] [2022-11-25 15:51:56,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,398 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:56,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:56,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-25 15:51:56,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:56,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:56,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-11-25 15:51:56,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,428 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-25 15:51:56,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:56,443 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:56,443 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:56,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-25 15:51:56,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,447 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-25 15:51:56,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:56,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:56,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,495 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-25 15:51:56,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:56,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:56,708 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:56,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,713 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:56,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:56,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:56,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:56,713 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:56,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:56,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:56,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-25 15:51:56,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:56,713 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:56,715 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:56,802 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:56,802 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:56,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,803 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:56,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:56,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:56,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:56,824 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 15:51:56,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:56,825 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 15:51:56,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:56,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-25 15:51:56,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:56,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,848 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:56,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:56,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:56,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:56,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:56,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:56,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:56,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:56,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-25 15:51:56,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:56,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,885 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:56,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:56,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:56,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:56,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:56,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-25 15:51:56,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:56,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:56,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:56,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-11-25 15:51:56,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,929 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:56,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:56,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:56,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:56,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:56,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-25 15:51:56,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:56,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:56,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:56,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:56,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,979 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:56,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:56,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:56,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:56,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:56,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:56,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-25 15:51:56,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:56,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:57,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:57,015 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:51:57,015 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 15:51:57,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,019 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:57,023 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:57,023 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:57,023 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 [] [2022-11-25 15:51:57,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-25 15:51:57,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,027 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:57,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:57,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:57,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:57,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:51:57,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:57,107 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 [2022-11-25 15:51:57,107 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 138 transitions. cyclomatic complexity: 60 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) [2022-11-25 15:51:57,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 138 transitions. cyclomatic complexity: 60. 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 321 states and 487 transitions. Complement of second has 13 states. [2022-11-25 15:51:57,186 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 [2022-11-25 15:51:57,187 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) [2022-11-25 15:51:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-25 15:51:57,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-25 15:51:57,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:57,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-25 15:51:57,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:57,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-25 15:51:57,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:57,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 487 transitions. [2022-11-25 15:51:57,191 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-25 15:51:57,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 265 states and 408 transitions. [2022-11-25 15:51:57,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-25 15:51:57,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2022-11-25 15:51:57,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 408 transitions. [2022-11-25 15:51:57,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:57,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 408 transitions. [2022-11-25 15:51:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 408 transitions. [2022-11-25 15:51:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2022-11-25 15:51:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 231 states have (on average 1.5541125541125542) internal successors, (359), 230 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 359 transitions. [2022-11-25 15:51:57,205 INFO L240 hiAutomatonCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-25 15:51:57,205 INFO L428 stractBuchiCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-25 15:51:57,205 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-25 15:51:57,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 359 transitions. [2022-11-25 15:51:57,206 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-25 15:51:57,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:57,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:57,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:57,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:57,208 INFO L748 eck$LassoCheckResult]: Stem: 2500#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2501#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; 2516#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2534#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2531#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 2528#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2526#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2523#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2519#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2520#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2589#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2590#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2586#L33 [2022-11-25 15:51:57,208 INFO L750 eck$LassoCheckResult]: Loop: 2586#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 2510#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2515#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2678#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2680#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2599#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2600#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2585#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2586#L33 [2022-11-25 15:51:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 4 times [2022-11-25 15:51:57,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:57,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081015113] [2022-11-25 15:51:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:57,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:57,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 2 times [2022-11-25 15:51:57,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:57,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084256258] [2022-11-25 15:51:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:57,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1424311141, now seen corresponding path program 2 times [2022-11-25 15:51:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671895064] [2022-11-25 15:51:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:57,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:57,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,356 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:57,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:57,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:57,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:57,356 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:57,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:57,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:57,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-25 15:51:57,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:57,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:57,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:57,442 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,443 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:57,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:57,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-25 15:51:57,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:57,475 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: [] [2022-11-25 15:51:57,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,482 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:57,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:57,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-25 15:51:57,511 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:57,511 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: [] [2022-11-25 15:51:57,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,520 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:57,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:57,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-25 15:51:57,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,568 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:57,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-25 15:51:57,753 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:57,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-11-25 15:51:57,756 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:57,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:57,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:57,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:57,756 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:57,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:57,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:57,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-25 15:51:57,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:57,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:57,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:57,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:57,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:57,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,874 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:57,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:57,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:57,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:57,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:57,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-25 15:51:57,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:57,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:57,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:57,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,920 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:57,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:57,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:57,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:57,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:57,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:57,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:57,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:57,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-25 15:51:57,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:57,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:51:57,956 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 15:51:57,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:57,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:57,957 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:57,960 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:57,961 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:57,961 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:57,961 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 [] [2022-11-25 15:51:57,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-25 15:51:57,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:57,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:57,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:57,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:58,056 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 [2022-11-25 15:51:58,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 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) [2022-11-25 15:51:58,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. 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 388 states and 603 transitions. Complement of second has 13 states. [2022-11-25 15:51:58,158 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 [2022-11-25 15:51:58,159 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) [2022-11-25 15:51:58,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-25 15:51:58,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-25 15:51:58,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:58,159 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:58,247 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-25 15:51:58,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 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) [2022-11-25 15:51:58,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. 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 376 states and 570 transitions. Complement of second has 15 states. [2022-11-25 15:51:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-25 15:51:58,331 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) [2022-11-25 15:51:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2022-11-25 15:51:58,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-25 15:51:58,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:58,331 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:51:58,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:58,415 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 4 loop predicates [2022-11-25 15:51:58,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 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) [2022-11-25 15:51:58,492 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. 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 695 states and 1068 transitions. Complement of second has 23 states. [2022-11-25 15:51:58,495 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 [2022-11-25 15:51:58,495 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) [2022-11-25 15:51:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-11-25 15:51:58,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-25 15:51:58,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:58,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 20 letters. Loop has 8 letters. [2022-11-25 15:51:58,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:58,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 16 letters. [2022-11-25 15:51:58,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:58,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 1068 transitions. [2022-11-25 15:51:58,503 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2022-11-25 15:51:58,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 473 states and 728 transitions. [2022-11-25 15:51:58,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2022-11-25 15:51:58,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-11-25 15:51:58,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 473 states and 728 transitions. [2022-11-25 15:51:58,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:58,508 INFO L218 hiAutomatonCegarLoop]: Abstraction has 473 states and 728 transitions. [2022-11-25 15:51:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states and 728 transitions. [2022-11-25 15:51:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 272. [2022-11-25 15:51:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 272 states have (on average 1.5661764705882353) internal successors, (426), 271 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 426 transitions. [2022-11-25 15:51:58,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-25 15:51:58,518 INFO L428 stractBuchiCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-25 15:51:58,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-25 15:51:58,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 272 states and 426 transitions. [2022-11-25 15:51:58,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-11-25 15:51:58,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:58,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:58,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:58,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:58,521 INFO L748 eck$LassoCheckResult]: Stem: 4461#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4462#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; 4478#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4466#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4467#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 4578#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4664#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4659#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 4655#L33 [2022-11-25 15:51:58,521 INFO L750 eck$LassoCheckResult]: Loop: 4655#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 4492#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4493#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4499#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4501#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 4558#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4660#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4656#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 4655#L33 [2022-11-25 15:51:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 2 times [2022-11-25 15:51:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:58,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713936950] [2022-11-25 15:51:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 930278262, now seen corresponding path program 1 times [2022-11-25 15:51:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:58,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223564091] [2022-11-25 15:51:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:58,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash 25229609, now seen corresponding path program 1 times [2022-11-25 15:51:58,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:58,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708848346] [2022-11-25 15:51:58,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:58,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:58,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:58,620 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:58,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:58,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:58,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:58,621 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:58,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:58,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:58,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-25 15:51:58,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:58,621 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:58,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:58,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:58,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:58,632 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:58,651 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:58,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:58,718 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:58,719 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:58,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:58,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:58,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-25 15:51:58,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:58,755 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: [] [2022-11-25 15:51:58,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:58,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:58,760 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:58,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:58,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-25 15:51:58,803 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:58,803 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:58,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:58,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:58,808 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:58,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:58,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:58,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-25 15:51:58,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:58,846 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: [] [2022-11-25 15:51:58,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:58,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:58,851 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:58,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:58,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:58,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-25 15:51:58,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:58,893 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:58,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:58,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:58,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-25 15:51:59,013 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:59,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-11-25 15:51:59,017 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:59,017 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:59,017 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:59,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:59,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:59,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:59,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:59,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-25 15:51:59,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:59,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:59,019 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,027 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,106 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:59,107 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,108 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:59,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:59,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:59,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:59,130 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 15:51:59,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:59,131 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 15:51:59,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:59,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-25 15:51:59,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:59,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,176 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:59,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:59,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:59,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:59,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:59,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:51:59,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:51:59,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-11-25 15:51:59,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:59,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,220 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-11-25 15:51:59,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:59,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:59,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:59,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:59,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:59,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:59,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:59,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:59,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:51:59,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,266 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:59,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:59,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:59,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:59,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:51:59,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:59,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:51:59,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:59,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-11-25 15:51:59,303 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:51:59,315 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 15:51:59,316 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 15:51:59,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,319 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:51:59,325 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:51:59,325 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:51:59,325 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 [] [2022-11-25 15:51:59,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-11-25 15:51:59,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,330 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:51:59,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:59,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:51:59,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:59,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:59,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:59,400 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 [2022-11-25 15:51:59,401 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 272 states and 426 transitions. cyclomatic complexity: 176 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) [2022-11-25 15:51:59,482 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 272 states and 426 transitions. cyclomatic complexity: 176. 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 583 states and 913 transitions. Complement of second has 12 states. [2022-11-25 15:51:59,482 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 [2022-11-25 15:51:59,483 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) [2022-11-25 15:51:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-25 15:51:59,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-25 15:51:59,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:59,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-25 15:51:59,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:59,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-25 15:51:59,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:51:59,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 913 transitions. [2022-11-25 15:51:59,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-25 15:51:59,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 325 states and 495 transitions. [2022-11-25 15:51:59,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-25 15:51:59,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-25 15:51:59,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 495 transitions. [2022-11-25 15:51:59,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 15:51:59,492 INFO L218 hiAutomatonCegarLoop]: Abstraction has 325 states and 495 transitions. [2022-11-25 15:51:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 495 transitions. [2022-11-25 15:51:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 194. [2022-11-25 15:51:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.541237113402062) internal successors, (299), 193 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 299 transitions. [2022-11-25 15:51:59,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-25 15:51:59,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-25 15:51:59,498 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-25 15:51:59,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 299 transitions. [2022-11-25 15:51:59,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-25 15:51:59,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:51:59,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:51:59,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:59,500 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:51:59,500 INFO L748 eck$LassoCheckResult]: Stem: 5399#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5400#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; 5421#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5433#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5428#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5424#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5423#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5422#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5409#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 5410#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5487#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5485#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5474#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 5471#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5544#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5540#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5406#L26 [2022-11-25 15:51:59,500 INFO L750 eck$LassoCheckResult]: Loop: 5406#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5401#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5402#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5405#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5406#L26 [2022-11-25 15:51:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash 834576226, now seen corresponding path program 2 times [2022-11-25 15:51:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:59,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857067456] [2022-11-25 15:51:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:59,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2022-11-25 15:51:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:59,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372126145] [2022-11-25 15:51:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -389738073, now seen corresponding path program 3 times [2022-11-25 15:51:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:59,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036503533] [2022-11-25 15:51:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:51:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:51:59,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:51:59,563 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:59,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:59,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:59,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:59,564 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 15:51:59,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:59,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:59,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-25 15:51:59,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:59,565 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:59,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,568 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,571 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,573 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,629 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:59,630 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 15:51:59,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,631 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:59,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:59,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-11-25 15:51:59,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:59,662 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: [] [2022-11-25 15:51:59,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,667 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:59,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:59,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-11-25 15:51:59,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:59,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:59,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,709 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:59,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:59,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-11-25 15:51:59,734 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 15:51:59,734 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 15:51:59,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,740 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-11-25 15:51:59,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 15:51:59,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:59,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,771 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-11-25 15:51:59,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 15:51:59,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 15:51:59,897 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 15:51:59,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2022-11-25 15:51:59,900 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 15:51:59,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 15:51:59,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 15:51:59,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 15:51:59,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 15:51:59,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 15:51:59,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 15:51:59,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-25 15:51:59,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 15:51:59,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 15:51:59,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,909 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 15:51:59,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 15:51:59,971 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 15:51:59,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:51:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:59,972 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:59,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:51:59,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:51:59,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:51:59,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:51:59,993 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 15:51:59,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:51:59,995 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 15:51:59,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:51:59,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-11-25 15:52:00,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:52:00,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:00,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:52:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:00,024 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:52:00,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:52:00,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:52:00,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:52:00,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:52:00,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:52:00,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:52:00,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:52:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-11-25 15:52:00,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:52:00,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2022-11-25 15:52:00,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:52:00,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:00,065 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:52:00,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-11-25 15:52:00,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:52:00,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:52:00,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:52:00,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:52:00,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:52:00,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 15:52:00,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 15:52:00,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 15:52:00,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2022-11-25 15:52:00,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:52:00,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:00,088 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:52:00,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 15:52:00,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-11-25 15:52:00,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 15:52:00,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 15:52:00,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 15:52:00,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 15:52:00,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 15:52:00,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 15:52:00,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 15:52:00,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 15:52:00,116 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 15:52:00,116 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-25 15:52:00,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:52:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:00,117 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:52:00,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-11-25 15:52:00,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 15:52:00,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 15:52:00,120 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 15:52:00,120 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 [] [2022-11-25 15:52:00,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2022-11-25 15:52:00,123 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 15:52:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:00,207 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 [2022-11-25 15:52:00,207 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 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) [2022-11-25 15:52:00,235 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. 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 354 states and 540 transitions. Complement of second has 7 states. [2022-11-25 15:52:00,236 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 [2022-11-25 15:52:00,237 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) [2022-11-25 15:52:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-25 15:52:00,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-25 15:52:00,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:52:00,238 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:52:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:00,317 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 [2022-11-25 15:52:00,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 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) [2022-11-25 15:52:00,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. 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 363 states and 529 transitions. Complement of second has 7 states. [2022-11-25 15:52:00,346 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 [2022-11-25 15:52:00,347 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) [2022-11-25 15:52:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-25 15:52:00,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-25 15:52:00,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:52:00,348 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 15:52:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:00,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:52:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:00,418 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 [2022-11-25 15:52:00,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 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) [2022-11-25 15:52:00,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. 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 471 states and 811 transitions. Complement of second has 8 states. [2022-11-25 15:52:00,440 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 [2022-11-25 15:52:00,441 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) [2022-11-25 15:52:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-25 15:52:00,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-25 15:52:00,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:52:00,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2022-11-25 15:52:00,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:52:00,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-25 15:52:00,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 15:52:00,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 471 states and 811 transitions. [2022-11-25 15:52:00,446 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 15:52:00,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 471 states to 0 states and 0 transitions. [2022-11-25 15:52:00,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 15:52:00,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 15:52:00,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 15:52:00,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:52:00,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:52:00,447 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:52:00,447 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:52:00,447 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-25 15:52:00,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:52:00,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 15:52:00,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 15:52:00,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 03:52:00 BoogieIcfgContainer [2022-11-25 15:52:00,456 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 15:52:00,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:52:00,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:52:00,457 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:52:00,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:51:50" (3/4) ... [2022-11-25 15:52:00,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:52:00,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:52:00,461 INFO L158 Benchmark]: Toolchain (without parser) took 10638.08ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 115.4MB in the beginning and 64.6MB in the end (delta: 50.7MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2022-11-25 15:52:00,461 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:52:00,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.50ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 105.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:52:00,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.57ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 104.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:52:00,462 INFO L158 Benchmark]: Boogie Preprocessor took 24.07ms. Allocated memory is still 144.7MB. Free memory was 104.2MB in the beginning and 103.5MB in the end (delta: 635.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:52:00,462 INFO L158 Benchmark]: RCFGBuilder took 249.97ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 94.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:52:00,463 INFO L158 Benchmark]: BuchiAutomizer took 10113.07ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 94.6MB in the beginning and 64.6MB in the end (delta: 29.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-11-25 15:52:00,463 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 174.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:52:00,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.50ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 105.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.57ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 104.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.07ms. Allocated memory is still 144.7MB. Free memory was 104.2MB in the beginning and 103.5MB in the end (delta: 635.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.97ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 94.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10113.07ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 94.6MB in the beginning and 64.6MB in the end (delta: 29.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 174.1MB. Free memory is still 64.6MB. 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, 6 deterministic, 4 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 y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 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 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.0s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.3s. Construction of modules took 0.3s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 442 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 [6, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 313 mSDsluCounter, 365 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 238 mSDtfsCounter, 347 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 neg99 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 15:52:00,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:00,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:00,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae701eea-d0e1-4920-a45b-8974587b72fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE