./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c --- 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-e04fb08 [2022-11-16 11:06:21,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:06:21,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:06:21,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:06:21,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:06:21,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:06:21,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:06:21,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:06:21,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:06:21,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:06:21,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:06:21,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:06:21,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:06:21,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:06:21,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:06:21,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:06:21,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:06:21,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:06:21,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:06:21,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:06:21,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:06:21,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:06:21,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:06:21,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:06:21,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:06:21,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:06:21,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:06:21,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:06:21,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:06:21,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:06:21,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:06:21,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:06:21,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:06:21,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:06:21,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:06:21,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:06:21,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:06:21,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:06:21,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:06:21,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:06:21,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:06:21,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:06:21,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:06:21,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:06:21,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:06:21,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:06:21,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:06:21,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:06:21,238 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:06:21,239 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:06:21,239 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:06:21,239 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:06:21,240 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:06:21,240 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:06:21,240 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:06:21,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:06:21,241 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:06:21,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:06:21,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:06:21,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:06:21,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:06:21,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:06:21,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:06:21,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:06:21,243 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:06:21,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:06:21,244 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:06:21,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:06:21,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:06:21,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:06:21,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:06:21,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:06:21,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:06:21,247 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:06:21,248 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_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2022-11-16 11:06:21,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:06:21,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:06:21,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:06:21,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:06:21,631 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:06:21,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2022-11-16 11:06:21,730 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/data/d05f3f558/67ffc2d98d5046c2a3a35e5cc3fef127/FLAGadf772216 [2022-11-16 11:06:22,246 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:06:22,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/sv-benchmarks/c/loop-lit/cggmp2005b.i [2022-11-16 11:06:22,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/data/d05f3f558/67ffc2d98d5046c2a3a35e5cc3fef127/FLAGadf772216 [2022-11-16 11:06:22,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/data/d05f3f558/67ffc2d98d5046c2a3a35e5cc3fef127 [2022-11-16 11:06:22,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:06:22,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:06:22,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:22,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:06:22,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:06:22,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:22,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f92366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22, skipping insertion in model container [2022-11-16 11:06:22,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:22,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:06:22,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:06:22,884 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2022-11-16 11:06:22,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:22,908 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:06:22,930 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2022-11-16 11:06:22,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:22,954 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:06:22,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22 WrapperNode [2022-11-16 11:06:22,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:22,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:22,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:06:22,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:06:22,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:22,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,015 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-11-16 11:06:23,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:23,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:06:23,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:06:23,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:06:23,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,039 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:06:23,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:06:23,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:06:23,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:06:23,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (1/1) ... [2022-11-16 11:06:23,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:23,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:23,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:06:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:06:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:06:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:06:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:06:23,195 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:06:23,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:06:23,302 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:06:23,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:06:23,310 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 11:06:23,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:23 BoogieIcfgContainer [2022-11-16 11:06:23,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:06:23,314 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:06:23,314 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:06:23,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:06:23,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:06:23,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:06:22" (1/3) ... [2022-11-16 11:06:23,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2350c828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:06:23, skipping insertion in model container [2022-11-16 11:06:23,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:06:23,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:22" (2/3) ... [2022-11-16 11:06:23,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2350c828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:06:23, skipping insertion in model container [2022-11-16 11:06:23,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:06:23,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:23" (3/3) ... [2022-11-16 11:06:23,326 INFO L332 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2022-11-16 11:06:23,389 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:06:23,389 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:06:23,389 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:06:23,389 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:06:23,389 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:06:23,390 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:06:23,390 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:06:23,390 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:06:23,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2022-11-16 11:06:23,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:06:23,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:23,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:23,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:06:23,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:06:23,427 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:06:23,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2022-11-16 11:06:23,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:06:23,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:23,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:23,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:06:23,431 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:06:23,441 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 5#L35-3true [2022-11-16 11:06:23,442 INFO L750 eck$LassoCheckResult]: Loop: 5#L35-3true assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 10#L31-2true assume !(main_~j~0#1 < 20); 6#L31-3true main_~k~0#1 := 4; 9#L35-2true assume !true; 5#L35-3true [2022-11-16 11:06:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:06:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222287656] [2022-11-16 11:06:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2022-11-16 11:06:23,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299232305] [2022-11-16 11:06:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:23,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:23,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299232305] [2022-11-16 11:06:23,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299232305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:23,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:23,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:06:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561279981] [2022-11-16 11:06:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:23,764 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:06:23,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:06:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:06:23,821 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 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) [2022-11-16 11:06:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:23,832 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-16 11:06:23,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-11-16 11:06:23,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:06:23,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 6 states and 8 transitions. [2022-11-16 11:06:23,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 11:06:23,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-16 11:06:23,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2022-11-16 11:06:23,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:23,847 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-16 11:06:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2022-11-16 11:06:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-16 11:06:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 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) [2022-11-16 11:06:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-11-16 11:06:23,884 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-16 11:06:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:06:23,893 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-16 11:06:23,893 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:06:23,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2022-11-16 11:06:23,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 11:06:23,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:23,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:23,895 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:06:23,895 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:06:23,896 INFO L748 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 37#L35-3 [2022-11-16 11:06:23,897 INFO L750 eck$LassoCheckResult]: Loop: 37#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 38#L31-2 assume !(main_~j~0#1 < 20); 39#L31-3 main_~k~0#1 := 4; 36#L35-2 assume !(main_~k~0#1 <= 3); 37#L35-3 [2022-11-16 11:06:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-16 11:06:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709236054] [2022-11-16 11:06:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2022-11-16 11:06:23,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038452616] [2022-11-16 11:06:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:23,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2022-11-16 11:06:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789604845] [2022-11-16 11:06:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:24,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:24,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789604845] [2022-11-16 11:06:24,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789604845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:24,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:24,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:06:24,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629943017] [2022-11-16 11:06:24,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:24,147 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:24,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:24,148 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:24,148 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:24,148 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:06:24,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:24,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:24,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2022-11-16 11:06:24,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:24,149 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:24,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,216 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:24,294 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:06:24,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:06:24,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:24,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:06:24,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=20} Honda state: {ULTIMATE.start_main_~j~0#1=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:06:24,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:06:24,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:06:24,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:24,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:06:24,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:06:24,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=4} Honda state: {ULTIMATE.start_main_~k~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:06:24,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:06:24,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:24,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:06:24,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,576 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:06:24,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:06:24,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:24,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:06:24,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,665 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:24,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:24,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:24,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:24,666 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:06:24,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,666 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:24,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:24,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2022-11-16 11:06:24,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:24,666 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:24,668 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:24,742 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:24,747 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:06:24,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,763 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 [2022-11-16 11:06:24,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:06:24,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:24,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:06:24,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:24,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:24,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:24,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:06:24,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:06:24,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:24,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:06:24,809 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 [2022-11-16 11:06:24,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:24,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:06:24,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:24,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:24,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:24,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:06:24,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:06:24,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:06:24,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:06:24,843 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:06:24,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:24,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:24,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:24,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:06:24,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:06:24,885 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:06:24,885 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:06:24,886 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 201 Supporting invariants [] [2022-11-16 11:06:24,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:24,894 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:06:24,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:06:24,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:24,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:24,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:25,125 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 [2022-11-16 11:06:25,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 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) [2022-11-16 11:06:25,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. 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 14 states and 21 transitions. Complement of second has 4 states. [2022-11-16 11:06:25,170 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 [2022-11-16 11:06:25,172 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) [2022-11-16 11:06:25,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-16 11:06:25,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-16 11:06:25,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:25,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-16 11:06:25,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:25,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-16 11:06:25,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:25,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2022-11-16 11:06:25,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-16 11:06:25,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2022-11-16 11:06:25,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 11:06:25,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-16 11:06:25,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2022-11-16 11:06:25,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:06:25,181 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 20 transitions. [2022-11-16 11:06:25,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2022-11-16 11:06:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2022-11-16 11:06:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 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) [2022-11-16 11:06:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2022-11-16 11:06:25,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 17 transitions. [2022-11-16 11:06:25,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:06:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:06:25,185 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. 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) [2022-11-16 11:06:25,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:25,192 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2022-11-16 11:06:25,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2022-11-16 11:06:25,193 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-16 11:06:25,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2022-11-16 11:06:25,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 11:06:25,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-16 11:06:25,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2022-11-16 11:06:25,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:06:25,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 19 transitions. [2022-11-16 11:06:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2022-11-16 11:06:25,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-16 11:06:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2022-11-16 11:06:25,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2022-11-16 11:06:25,197 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 19 transitions. [2022-11-16 11:06:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:06:25,199 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2022-11-16 11:06:25,199 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:06:25,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2022-11-16 11:06:25,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-16 11:06:25,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:25,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:25,201 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:06:25,201 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:06:25,201 INFO L748 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 116#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 124#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 125#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 120#L31-2 [2022-11-16 11:06:25,201 INFO L750 eck$LassoCheckResult]: Loop: 120#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 120#L31-2 [2022-11-16 11:06:25,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:25,202 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-11-16 11:06:25,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:25,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587863491] [2022-11-16 11:06:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:25,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-11-16 11:06:25,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:25,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251815998] [2022-11-16 11:06:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:25,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:25,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2022-11-16 11:06:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:25,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454929939] [2022-11-16 11:06:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:25,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:25,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:25,507 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:25,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:25,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:25,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:25,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:06:25,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:25,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:25,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:25,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2022-11-16 11:06:25,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:25,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:25,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,574 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,606 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:25,815 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:25,815 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:06:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:25,819 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:25,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:06:25,831 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 [2022-11-16 11:06:25,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:25,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:25,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:25,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:25,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:25,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:25,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:25,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:25,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:25,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:25,886 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:25,904 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 [2022-11-16 11:06:25,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:06:25,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:25,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:25,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:25,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:25,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:25,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:25,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:25,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:25,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:25,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:25,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:25,963 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 [2022-11-16 11:06:25,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:06:25,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:25,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:25,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:25,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:25,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:25,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,016 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,026 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 [2022-11-16 11:06:26,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:06:26,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,077 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:06:26,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:06:26,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,134 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,147 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 [2022-11-16 11:06:26,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:06:26,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:06:26,218 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 [2022-11-16 11:06:26,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,281 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 [2022-11-16 11:06:26,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:06:26,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,326 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,331 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 [2022-11-16 11:06:26,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:06:26,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,352 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,374 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:06:26,384 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 [2022-11-16 11:06:26,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,446 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,457 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 [2022-11-16 11:06:26,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:06:26,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:06:26,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:06:26,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:06:26,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,494 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:06:26,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:06:26,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:06:26,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,557 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,568 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 [2022-11-16 11:06:26,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:06:26,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:26,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:26,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:26,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:26,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:06:26,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:06:26,615 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:06:26,633 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-16 11:06:26,633 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-16 11:06:26,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:26,636 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:26,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:06:26,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 11:06:26,684 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-16 11:06:26,684 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:06:26,684 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0#1 - 1 >= 0] [2022-11-16 11:06:26,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:26,705 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2022-11-16 11:06:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:26,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,816 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:06:26,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:26,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2022-11-16 11:06:26,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-16 11:06:26,892 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 21 states and 34 transitions. Complement of second has 6 states. [2022-11-16 11:06:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:06:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-16 11:06:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-16 11:06:26,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-16 11:06:26,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:26,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2022-11-16 11:06:26,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:26,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-16 11:06:26,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:26,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2022-11-16 11:06:26,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:06:26,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2022-11-16 11:06:26,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 11:06:26,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-16 11:06:26,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2022-11-16 11:06:26,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:06:26,905 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-16 11:06:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2022-11-16 11:06:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-16 11:06:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2022-11-16 11:06:26,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 27 transitions. [2022-11-16 11:06:26,910 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2022-11-16 11:06:26,911 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:06:26,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2022-11-16 11:06:26,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:06:26,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:26,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:26,915 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:06:26,915 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:06:26,916 INFO L748 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 210#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 211#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 204#L31-2 assume !(main_~j~0#1 < 20); 205#L31-3 main_~k~0#1 := 4; 201#L35-2 [2022-11-16 11:06:26,916 INFO L750 eck$LassoCheckResult]: Loop: 201#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 201#L35-2 [2022-11-16 11:06:26,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:26,917 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2022-11-16 11:06:26,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006129340] [2022-11-16 11:06:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:26,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:27,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:27,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006129340] [2022-11-16 11:06:27,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006129340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:06:27,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193281887] [2022-11-16 11:06:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:27,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:27,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,075 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-16 11:06:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:06:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:27,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:06:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:27,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193281887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:06:27,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:06:27,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:06:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603301779] [2022-11-16 11:06:27,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:06:27,232 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:06:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2022-11-16 11:06:27,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:27,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755254960] [2022-11-16 11:06:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:27,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:27,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:27,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:27,253 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:27,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:27,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:27,254 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:27,254 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:06:27,254 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,254 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:27,254 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:27,254 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2022-11-16 11:06:27,254 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:27,255 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:27,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:27,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:27,277 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:06:27,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,281 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:06:27,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:27,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:06:27,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:27,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,322 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:06:27,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:27,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:06:27,363 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:06:27,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:27,373 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:27,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:27,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:27,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:27,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:06:27,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:27,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:27,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2022-11-16 11:06:27,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:27,374 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:27,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:27,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:27,408 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:06:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,410 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,415 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 [2022-11-16 11:06:27,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:06:27,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:27,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:06:27,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:27,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:27,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:27,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:06:27,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:06:27,446 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:06:27,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:06:27,460 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:06:27,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:27,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,467 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:06:27,471 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:06:27,471 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:06:27,471 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2022-11-16 11:06:27,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:06:27,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:27,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:06:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:06:27,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,534 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:27,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:27,535 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:06:27,536 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-16 11:06:27,557 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 48 states and 76 transitions. Complement of second has 5 states. [2022-11-16 11:06:27,558 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 [2022-11-16 11:06:27,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-16 11:06:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-16 11:06:27,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-16 11:06:27,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:27,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2022-11-16 11:06:27,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:27,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-16 11:06:27,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:27,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2022-11-16 11:06:27,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:06:27,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2022-11-16 11:06:27,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-16 11:06:27,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-16 11:06:27,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2022-11-16 11:06:27,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:06:27,564 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 52 transitions. [2022-11-16 11:06:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2022-11-16 11:06:27,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2022-11-16 11:06:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-16 11:06:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-11-16 11:06:27,567 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-16 11:06:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:06:27,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:06:27,568 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:27,620 INFO L93 Difference]: Finished difference Result 19 states and 28 transitions. [2022-11-16 11:06:27,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2022-11-16 11:06:27,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:06:27,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 28 transitions. [2022-11-16 11:06:27,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 11:06:27,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-16 11:06:27,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2022-11-16 11:06:27,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:06:27,622 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-16 11:06:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2022-11-16 11:06:27,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-16 11:06:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 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) [2022-11-16 11:06:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2022-11-16 11:06:27,625 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-16 11:06:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:27,626 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-16 11:06:27,626 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:06:27,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2022-11-16 11:06:27,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:06:27,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:06:27,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:06:27,627 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1] [2022-11-16 11:06:27,628 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:06:27,628 INFO L748 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 383#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 387#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 388#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 396#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 393#L31-2 assume !(main_~j~0#1 < 20); 390#L31-3 main_~k~0#1 := 4; 381#L35-2 assume !(main_~k~0#1 <= 3); 382#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 389#L31-2 assume !(main_~j~0#1 < 20); 385#L31-3 main_~k~0#1 := 4; 380#L35-2 [2022-11-16 11:06:27,628 INFO L750 eck$LassoCheckResult]: Loop: 380#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 380#L35-2 [2022-11-16 11:06:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1938241212, now seen corresponding path program 1 times [2022-11-16 11:06:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:27,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779750920] [2022-11-16 11:06:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:06:27,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:27,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779750920] [2022-11-16 11:06:27,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779750920] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:06:27,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250300850] [2022-11-16 11:06:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:27,774 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:06:27,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-16 11:06:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:06:27,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:27,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:27,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:06:28,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:06:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:06:28,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250300850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:06:28,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:06:28,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-11-16 11:06:28,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390269744] [2022-11-16 11:06:28,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:06:28,119 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:06:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:28,120 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2022-11-16 11:06:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:28,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744352463] [2022-11-16 11:06:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:28,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:28,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:06:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:06:28,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:06:28,143 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:28,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:28,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:28,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:28,144 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:06:28,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:28,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:28,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2022-11-16 11:06:28,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:28,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:28,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:28,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:28,169 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:06:28,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:28,171 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:28,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 11:06:28,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:06:28,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:28,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:28,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:28,208 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:28,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:06:28,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:06:28,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 11:06:28,252 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:06:28,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:28,257 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:06:28,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:06:28,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:06:28,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:06:28,258 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:06:28,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:06:28,258 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:06:28,258 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2022-11-16 11:06:28,258 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:06:28,258 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:06:28,259 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:06:28,285 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:06:28,285 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:06:28,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:28,287 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:28,296 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 [2022-11-16 11:06:28,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 11:06:28,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:06:28,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:06:28,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:06:28,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:06:28,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:06:28,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:06:28,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:06:28,330 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:06:28,334 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:06:28,335 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:06:28,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:06:28,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:28,337 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:28,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:06:28,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:06:28,342 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:06:28,342 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2022-11-16 11:06:28,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 11:06:28,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:28,353 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:06:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,430 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:28,432 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:06:28,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,457 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 70 transitions. Complement of second has 5 states. [2022-11-16 11:06:28,458 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 [2022-11-16 11:06:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-16 11:06:28,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2022-11-16 11:06:28,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:28,461 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:06:28,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,527 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:28,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:06:28,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 70 transitions. Complement of second has 5 states. [2022-11-16 11:06:28,552 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 [2022-11-16 11:06:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-16 11:06:28,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2022-11-16 11:06:28,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:28,559 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:06:28,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:28,619 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:06:28,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:28,621 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 1 loop predicates [2022-11-16 11:06:28,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,638 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 4 states. [2022-11-16 11:06:28,639 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 [2022-11-16 11:06:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:06:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-11-16 11:06:28,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2022-11-16 11:06:28,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:28,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 1 letters. [2022-11-16 11:06:28,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:28,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2022-11-16 11:06:28,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:06:28,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2022-11-16 11:06:28,643 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:06:28,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2022-11-16 11:06:28,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:06:28,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:06:28,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:06:28,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:28,645 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:06:28,645 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:06:28,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:28,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:06:28,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:06:28,646 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-16 11:06:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:28,647 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-16 11:06:28,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-16 11:06:28,647 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:06:28,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:06:28,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:06:28,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:06:28,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:06:28,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:28,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:06:28,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:06:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:06:28,649 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:06:28,649 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:06:28,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:06:28,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:06:28,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:06:28,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:06:28 BoogieIcfgContainer [2022-11-16 11:06:28,660 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:06:28,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:06:28,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:06:28,661 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:06:28,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:23" (3/4) ... [2022-11-16 11:06:28,665 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:06:28,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:06:28,667 INFO L158 Benchmark]: Toolchain (without parser) took 6058.28ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.3MB in the beginning and 70.9MB in the end (delta: 1.3MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-16 11:06:28,667 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 81.9MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:06:28,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.80ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 84.3MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:06:28,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.35ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:06:28,668 INFO L158 Benchmark]: Boogie Preprocessor took 26.01ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.9MB in the end (delta: 809.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:06:28,669 INFO L158 Benchmark]: RCFGBuilder took 269.71ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 72.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:06:28,669 INFO L158 Benchmark]: BuchiAutomizer took 5345.82ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-11-16 11:06:28,670 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 132.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:06:28,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 81.9MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.80ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 84.3MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.35ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.01ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.9MB in the end (delta: 809.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.71ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 72.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5345.82ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 132.1MB. Free memory is still 70.9MB. 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. One nondeterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 81 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp77 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:06:28,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:28,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:29,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-11-16 11:06:29,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f561bd-48de-4e38-ac65-4940710be702/bin/uautomizer-tPACEb0tL8/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