./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a22779a8a894423533dbeca4f6e8ce4ed32ee44c52235b9a9f0eb9a867d565b5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:00:15,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:15,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:15,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:15,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:15,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:15,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:15,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:15,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:15,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:15,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:15,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:15,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:15,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:15,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:15,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:15,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:15,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:15,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:15,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:15,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:15,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:15,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:15,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:15,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:15,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:15,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:15,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:15,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:15,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:15,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:15,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:15,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:15,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:15,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:15,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:15,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:15,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:15,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:15,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:15,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:15,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 21:00:15,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:15,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:15,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:15,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:15,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:15,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:15,963 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:15,963 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 21:00:15,963 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 21:00:15,963 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 21:00:15,963 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 21:00:15,963 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 21:00:15,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 21:00:15,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:15,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:00:15,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:15,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:15,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 21:00:15,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 21:00:15,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 21:00:15,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:15,965 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 21:00:15,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:15,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 21:00:15,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:15,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:15,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:15,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:00:15,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 21:00:15,968 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_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22779a8a894423533dbeca4f6e8ce4ed32ee44c52235b9a9f0eb9a867d565b5 [2022-11-18 21:00:16,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:16,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:16,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:16,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:16,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:16,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-restricted-15/PastaA10.c [2022-11-18 21:00:16,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/data/bb41f6c0e/8b4b32394a954facb632e9865edfb601/FLAGbf8f2cc22 [2022-11-18 21:00:16,737 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:16,738 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/sv-benchmarks/c/termination-restricted-15/PastaA10.c [2022-11-18 21:00:16,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/data/bb41f6c0e/8b4b32394a954facb632e9865edfb601/FLAGbf8f2cc22 [2022-11-18 21:00:17,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/data/bb41f6c0e/8b4b32394a954facb632e9865edfb601 [2022-11-18 21:00:17,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:17,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:17,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:17,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:17,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:17,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713b1244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17, skipping insertion in model container [2022-11-18 21:00:17,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:17,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:17,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:17,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:17,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:17,413 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:17,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17 WrapperNode [2022-11-18 21:00:17,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:17,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:17,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:17,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:17,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,442 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-11-18 21:00:17,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:17,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:17,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:17,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:17,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,458 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:17,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:17,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:17,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:17,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (1/1) ... [2022-11-18 21:00:17,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:17,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:17,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:17,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:17,623 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:17,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:17,685 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:17,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:17,691 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:17,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:17 BoogieIcfgContainer [2022-11-18 21:00:17,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:17,694 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 21:00:17,694 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 21:00:17,698 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 21:00:17,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:00:17,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:00:17" (1/3) ... [2022-11-18 21:00:17,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1296bced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:00:17, skipping insertion in model container [2022-11-18 21:00:17,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:00:17,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:17" (2/3) ... [2022-11-18 21:00:17,700 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1296bced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:00:17, skipping insertion in model container [2022-11-18 21:00:17,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:00:17,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:17" (3/3) ... [2022-11-18 21:00:17,701 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaA10.c [2022-11-18 21:00:17,763 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 21:00:17,763 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 21:00:17,763 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 21:00:17,763 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 21:00:17,763 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 21:00:17,764 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 21:00:17,764 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 21:00:17,764 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 21:00:17,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:17,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:17,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:00:17,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:00:17,792 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 21:00:17,792 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:00:17,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 21:00:17,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:17,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:17,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:00:17,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:00:17,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 21:00:17,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:00:17,800 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 5#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_~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; 2#L12-2true [2022-11-18 21:00:17,800 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~x~0#1 != main_~y~0#1); 8#L12true assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 2#L12-2true [2022-11-18 21:00:17,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 21:00:17,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:17,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888328564] [2022-11-18 21:00:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:17,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:17,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-18 21:00:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:17,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806711722] [2022-11-18 21:00:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:17,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:17,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-18 21:00:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:17,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634419456] [2022-11-18 21:00:17,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:17,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:17,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:18,013 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:18,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:18,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:18,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:18,014 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 21:00:18,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:18,015 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:18,015 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2022-11-18 21:00:18,015 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:18,016 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:18,035 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,048 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,174 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:18,175 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 21:00:18,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 21:00:18,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:18,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:18,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 21:00:18,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 21:00:18,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:18,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:18,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 21:00:18,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 21:00:18,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 21:00:18,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 21:00:18,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:18,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:18,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 21:00:18,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:18,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 21:00:18,571 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 21:00:18,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,582 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:18,582 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:18,582 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:18,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:18,583 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 21:00:18,583 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,583 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:18,583 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:18,583 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2022-11-18 21:00:18,583 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:18,583 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:18,585 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:18,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:18,721 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 21:00:18,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:18,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:18,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:18,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:18,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:18,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 21:00:18,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 21:00:18,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 21:00:18,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 21:00:18,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:18,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:18,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:18,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:18,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:18,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 21:00:18,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 21:00:18,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 21:00:18,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 21:00:18,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:18,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:18,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 21:00:18,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:18,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 21:00:18,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:18,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:18,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:18,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 21:00:18,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 21:00:18,880 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 21:00:18,886 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 21:00:18,887 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 21:00:18,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:18,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:18,891 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:18,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 21:00:18,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 21:00:18,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 21:00:18,912 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 21:00:18,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-18 21:00:18,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-18 21:00:18,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 21:00:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:18,971 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:18,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:18,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:00:18,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:19,071 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:19,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:19,123 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 8 states. [2022-11-18 21:00:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-18 21:00:19,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-18 21:00:19,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:19,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 21:00:19,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:19,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-18 21:00:19,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:19,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-11-18 21:00:19,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:19,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-18 21:00:19,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-18 21:00:19,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-18 21:00:19,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-18 21:00:19,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 21:00:19,150 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-18 21:00:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-18 21:00:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-18 21:00:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2022-11-18 21:00:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-18 21:00:19,178 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-18 21:00:19,178 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-18 21:00:19,178 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 21:00:19,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-18 21:00:19,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:19,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:00:19,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:00:19,179 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 21:00:19,179 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:00:19,180 INFO L748 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 77#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_~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; 78#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 75#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 71#L12-2 [2022-11-18 21:00:19,180 INFO L750 eck$LassoCheckResult]: Loop: 71#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 72#L12 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 71#L12-2 [2022-11-18 21:00:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:19,181 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-18 21:00:19,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:19,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468555483] [2022-11-18 21:00:19,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:19,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:19,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:19,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-11-18 21:00:19,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:19,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400787496] [2022-11-18 21:00:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:19,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:19,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:19,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:19,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-11-18 21:00:19,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:19,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426842210] [2022-11-18 21:00:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:19,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:19,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:19,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426842210] [2022-11-18 21:00:19,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426842210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:19,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:19,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675638347] [2022-11-18 21:00:19,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:19,355 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:19,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:19,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:19,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:19,356 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 21:00:19,356 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:19,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:19,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2022-11-18 21:00:19,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:19,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:19,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:19,415 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 21:00:19,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,417 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:19,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:19,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 21:00:19,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 21:00:19,448 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: [] [2022-11-18 21:00:19,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 21:00:19,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:19,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:19,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 21:00:19,496 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: [] [2022-11-18 21:00:19,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:19,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 21:00:19,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 21:00:19,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:19,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 21:00:19,751 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 21:00:19,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,755 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:19,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:19,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:19,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:19,756 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 21:00:19,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:19,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:19,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2022-11-18 21:00:19,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:19,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:19,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,772 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:19,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:19,828 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 21:00:19,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,832 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:19,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:19,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:19,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:19,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:19,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 21:00:19,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 21:00:19,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 21:00:19,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 21:00:19,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,879 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 21:00:19,884 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 [2022-11-18 21:00:19,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:19,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:19,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:19,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:19,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 21:00:19,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 21:00:19,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 21:00:19,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:19,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,918 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 21:00:19,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:19,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:19,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 21:00:19,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:19,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:19,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:19,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 21:00:19,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 21:00:19,959 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 21:00:19,967 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 21:00:19,967 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 21:00:19,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:19,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:19,975 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:19,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 21:00:19,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 21:00:19,977 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 21:00:19,977 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 21:00:19,977 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-18 21:00:19,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-18 21:00:19,985 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 21:00:20,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:20,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:20,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:20,031 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:00:20,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:20,053 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:20,054 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-18 21:00:20,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2022-11-18 21:00:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-18 21:00:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-18 21:00:20,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 21:00:20,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 21:00:20,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-18 21:00:20,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-11-18 21:00:20,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:20,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-11-18 21:00:20,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-18 21:00:20,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 21:00:20,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-18 21:00:20,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 21:00:20,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-18 21:00:20,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-18 21:00:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 21:00:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-18 21:00:20,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-18 21:00:20,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:20,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:20,113 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2022-11-18 21:00:20,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:20,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,142 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-18 21:00:20,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-11-18 21:00:20,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:20,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-11-18 21:00:20,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 21:00:20,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 21:00:20,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-18 21:00:20,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 21:00:20,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-18 21:00:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-18 21:00:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-11-18 21:00:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-18 21:00:20,148 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-18 21:00:20,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:00:20,150 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-18 21:00:20,150 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 21:00:20,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-18 21:00:20,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:20,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:00:20,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:00:20,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 21:00:20,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:00:20,154 INFO L748 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 159#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_~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; 160#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 155#L12 [2022-11-18 21:00:20,154 INFO L750 eck$LassoCheckResult]: Loop: 155#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 154#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 155#L12 [2022-11-18 21:00:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,155 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-18 21:00:20,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152533805] [2022-11-18 21:00:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-11-18 21:00:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850168492] [2022-11-18 21:00:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2022-11-18 21:00:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373154482] [2022-11-18 21:00:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:20,215 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:20,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:20,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:20,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:20,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 21:00:20,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:20,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:20,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2022-11-18 21:00:20,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:20,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:20,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,220 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,288 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:20,288 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 21:00:20,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:20,289 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:20,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:20,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:20,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 21:00:20,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 21:00:20,328 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: [] [2022-11-18 21:00:20,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:20,338 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:20,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:20,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 21:00:20,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:20,385 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:20,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 21:00:20,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:20,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 21:00:20,667 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 21:00:20,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,674 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:20,674 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:20,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:20,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:20,674 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 21:00:20,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:20,675 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:20,675 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2022-11-18 21:00:20,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:20,675 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:20,676 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,693 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:20,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:20,766 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 21:00:20,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:20,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:20,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:20,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:20,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 21:00:20,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:20,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:20,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:20,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 21:00:20,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 21:00:20,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 21:00:20,803 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 21:00:20,807 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 21:00:20,807 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 21:00:20,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:20,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:20,812 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:20,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 21:00:20,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 21:00:20,820 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 21:00:20,820 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 21:00:20,820 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-18 21:00:20,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:20,828 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 21:00:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:20,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:20,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:20,859 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:00:20,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:20,911 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:20,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:20,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12 states and 14 transitions. Complement of second has 5 states. [2022-11-18 21:00:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-18 21:00:20,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-18 21:00:20,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 21:00:20,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-18 21:00:20,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:20,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2022-11-18 21:00:20,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:20,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2022-11-18 21:00:20,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-18 21:00:20,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-18 21:00:20,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-11-18 21:00:20,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 21:00:20,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 21:00:20,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-11-18 21:00:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-11-18 21:00:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2022-11-18 21:00:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-18 21:00:20,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 21:00:20,941 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 21:00:20,941 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 21:00:20,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-11-18 21:00:20,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 21:00:20,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:00:20,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:00:20,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-11-18 21:00:20,942 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:00:20,943 INFO L748 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 213#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_~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; 208#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 209#L12 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 210#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 211#L12 [2022-11-18 21:00:20,943 INFO L750 eck$LassoCheckResult]: Loop: 211#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 214#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 211#L12 [2022-11-18 21:00:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-11-18 21:00:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605356528] [2022-11-18 21:00:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-11-18 21:00:20,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651652783] [2022-11-18 21:00:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:20,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:20,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:20,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 2 times [2022-11-18 21:00:20,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:20,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683891409] [2022-11-18 21:00:20,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:20,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:21,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:21,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683891409] [2022-11-18 21:00:21,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683891409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:21,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:21,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992431983] [2022-11-18 21:00:21,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:21,036 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:21,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:21,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:21,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:21,036 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 21:00:21,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:21,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:21,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2022-11-18 21:00:21,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:21,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:21,038 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:21,126 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 21:00:21,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:21,140 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:21,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 21:00:21,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 21:00:21,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:21,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:21,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:21,183 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:21,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 21:00:21,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 21:00:21,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 21:00:21,477 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 21:00:21,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-18 21:00:21,480 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 21:00:21,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 21:00:21,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 21:00:21,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 21:00:21,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 21:00:21,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 21:00:21,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 21:00:21,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2022-11-18 21:00:21,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 21:00:21,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 21:00:21,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 21:00:21,552 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 21:00:21,552 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 21:00:21,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:21,553 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:21,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 21:00:21,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 21:00:21,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 21:00:21,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 21:00:21,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 21:00:21,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 21:00:21,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 21:00:21,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 21:00:21,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 21:00:21,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 21:00:21,593 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 21:00:21,593 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 21:00:21,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:00:21,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:21,595 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:21,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 21:00:21,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 21:00:21,597 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 21:00:21,597 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 21:00:21,597 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-18 21:00:21,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-18 21:00:21,601 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 21:00:21,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,632 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:21,651 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:21,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 states and 9 transitions. Complement of second has 3 states. [2022-11-18 21:00:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2022-11-18 21:00:21,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 21:00:21,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:21,657 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 21:00:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,684 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:21,701 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:21,702 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,728 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 states and 9 transitions. Complement of second has 3 states. [2022-11-18 21:00:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2022-11-18 21:00:21,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 21:00:21,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:21,730 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 21:00:21,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:00:21,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:21,787 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 21:00:21,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 states and 10 transitions. Complement of second has 4 states. [2022-11-18 21:00:21,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 21:00:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-11-18 21:00:21,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 21:00:21,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:21,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-18 21:00:21,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:21,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-18 21:00:21,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 21:00:21,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-11-18 21:00:21,805 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 21:00:21,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2022-11-18 21:00:21,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 21:00:21,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 21:00:21,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 21:00:21,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:21,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:21,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:21,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:21,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:21,807 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:21,807 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-18 21:00:21,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-18 21:00:21,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 21:00:21,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:00:21,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 21:00:21,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 21:00:21,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 21:00:21,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:00:21,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:21,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:21,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:00:21,810 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:21,810 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 21:00:21,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:00:21,810 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 21:00:21,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 21:00:21,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:00:21 BoogieIcfgContainer [2022-11-18 21:00:21,818 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 21:00:21,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:00:21,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:00:21,823 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:00:21,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:17" (3/4) ... [2022-11-18 21:00:21,828 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:00:21,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:00:21,835 INFO L158 Benchmark]: Toolchain (without parser) took 4694.89ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 92.7MB in the beginning and 133.7MB in the end (delta: -41.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:21,836 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:21,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.05ms. Allocated memory is still 125.8MB. Free memory was 92.4MB in the beginning and 103.8MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:00:21,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 125.8MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:21,838 INFO L158 Benchmark]: Boogie Preprocessor took 16.96ms. Allocated memory is still 125.8MB. Free memory was 102.6MB in the beginning and 101.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:00:21,838 INFO L158 Benchmark]: RCFGBuilder took 232.77ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 93.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:00:21,839 INFO L158 Benchmark]: BuchiAutomizer took 4124.46ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 93.3MB in the beginning and 134.8MB in the end (delta: -41.4MB). Peak memory consumption was 346.2kB. Max. memory is 16.1GB. [2022-11-18 21:00:21,839 INFO L158 Benchmark]: Witness Printer took 9.39ms. Allocated memory is still 165.7MB. Free memory was 134.8MB in the beginning and 133.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:21,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.05ms. Allocated memory is still 125.8MB. Free memory was 92.4MB in the beginning and 103.8MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 125.8MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.96ms. Allocated memory is still 125.8MB. Free memory was 102.6MB in the beginning and 101.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 232.77ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 93.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4124.46ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 93.3MB in the beginning and 134.8MB in the end (delta: -41.4MB). Peak memory consumption was 346.2kB. Max. memory is 16.1GB. * Witness Printer took 9.39ms. Allocated memory is still 165.7MB. Free memory was 134.8MB in the beginning and 133.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 29 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax182 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf95 smp68 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 21:00:21,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d95c1f3c-ad33-4830-b0f8-cac0435ef09d/bin/uautomizer-TMbwUNV5ro/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