./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- 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-dbf71c6-m [2022-10-17 10:25:32,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:25:32,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:25:32,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:25:32,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:25:32,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:25:32,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:25:32,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:25:32,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:25:32,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:25:32,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:25:32,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:25:32,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:25:32,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:25:32,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:25:32,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:25:32,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:25:32,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:25:32,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:25:32,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:25:32,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:25:32,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:25:32,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:25:32,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:25:32,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:25:32,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:25:32,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:25:32,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:25:32,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:25:32,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:25:32,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:25:32,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:25:32,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:25:32,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:25:32,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:25:32,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:25:32,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:25:32,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:25:32,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:25:32,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:25:32,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:25:32,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:25:32,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:25:32,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:25:32,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:25:32,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:25:32,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:25:32,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:25:32,306 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:25:32,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:25:32,307 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:25:32,307 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:25:32,308 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:25:32,308 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:25:32,308 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:25:32,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:25:32,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:25:32,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:25:32,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:25:32,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:25:32,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:25:32,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:25:32,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:25:32,311 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:25:32,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:25:32,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:25:32,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:25:32,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:25:32,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:25:32,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:25:32,314 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:25:32,323 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_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2022-10-17 10:25:32,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:25:32,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:25:32,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:25:32,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:25:32,706 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:25:32,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted/Parallel.c [2022-10-17 10:25:32,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/data/e5eeb64b0/dfb7dc0a77b44c41a36d3f4849b1c7f6/FLAGf064428c7 [2022-10-17 10:25:33,331 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:25:33,335 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/sv-benchmarks/c/termination-crafted/Parallel.c [2022-10-17 10:25:33,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/data/e5eeb64b0/dfb7dc0a77b44c41a36d3f4849b1c7f6/FLAGf064428c7 [2022-10-17 10:25:33,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/data/e5eeb64b0/dfb7dc0a77b44c41a36d3f4849b1c7f6 [2022-10-17 10:25:33,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:25:33,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:25:33,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:25:33,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:25:33,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:25:33,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:33,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cceb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33, skipping insertion in model container [2022-10-17 10:25:33,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:33,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:25:33,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:25:33,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:25:33,949 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:25:33,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:25:33,986 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:25:33,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33 WrapperNode [2022-10-17 10:25:33,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:25:33,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:25:33,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:25:33,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:25:34,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,029 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-10-17 10:25:34,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:25:34,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:25:34,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:25:34,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:25:34,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,055 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:25:34,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:25:34,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:25:34,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:25:34,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (1/1) ... [2022-10-17 10:25:34,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:34,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:34,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:34,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:25:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:25:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:25:34,271 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:25:34,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:25:34,390 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:25:34,401 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:25:34,401 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:25:34,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:34 BoogieIcfgContainer [2022-10-17 10:25:34,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:25:34,407 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:25:34,407 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:25:34,413 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:25:34,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:25:34,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:25:33" (1/3) ... [2022-10-17 10:25:34,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2803ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:25:34, skipping insertion in model container [2022-10-17 10:25:34,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:25:34,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:25:33" (2/3) ... [2022-10-17 10:25:34,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2803ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:25:34, skipping insertion in model container [2022-10-17 10:25:34,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:25:34,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:34" (3/3) ... [2022-10-17 10:25:34,420 INFO L332 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2022-10-17 10:25:34,510 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:25:34,510 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:25:34,510 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:25:34,510 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:25:34,511 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:25:34,511 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:25:34,511 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:25:34,512 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:25:34,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:34,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:25:34,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:25:34,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:25:34,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:25:34,561 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:25:34,561 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:25:34,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:34,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:25:34,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:25:34,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:25:34,565 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:25:34,565 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:25:34,574 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L23-2true [2022-10-17 10:25:34,575 INFO L750 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 5#L23true assume !(main_~x~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 4#L23-2true [2022-10-17 10:25:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:25:34,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:34,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143011367] [2022-10-17 10:25:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:34,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-10-17 10:25:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:34,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141802613] [2022-10-17 10:25:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:34,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-10-17 10:25:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:34,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158412977] [2022-10-17 10:25:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:34,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:34,996 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:25:35,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:25:35,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:25:35,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:25:35,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:25:35,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:25:35,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:25:35,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2022-10-17 10:25:35,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:25:35,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:25:35,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,094 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,199 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:25:35,203 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:25:35,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:35,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:25:35,258 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:25:35,258 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:25:35,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-10-17 10:25:35,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:25:35,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:35,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:35,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:25:35,327 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:25:35,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-10-17 10:25:35,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:25:35,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:35,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:35,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:25:35,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:25:35,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:35,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:25:35,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:35,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:35,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:35,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:25:35,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:25:35,577 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:25:35,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:35,587 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:25:35,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:25:35,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:25:35,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:25:35,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:25:35,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:25:35,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:25:35,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2022-10-17 10:25:35,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:25:35,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:25:35,590 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,595 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,599 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,604 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:35,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:25:35,664 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:25:35,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:25:35,686 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 [2022-10-17 10:25:35,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:35,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:35,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:35,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:35,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:25:35,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:25:35,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:25:35,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:35,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:25:35,756 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 [2022-10-17 10:25:35,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:35,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:35,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:35,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:35,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:25:35,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:25:35,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:25:35,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:25:35,826 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 [2022-10-17 10:25:35,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:35,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:25:35,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:35,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:35,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:35,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:25:35,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:25:35,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:25:35,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-10-17 10:25:35,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,872 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:25:35,873 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 [2022-10-17 10:25:35,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:35,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:25:35,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:35,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:35,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:35,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:25:35,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:25:35,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:25:35,908 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:25:35,908 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:25:35,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:35,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:35,911 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:35,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:25:35,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:25:35,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:25:35,912 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:25:35,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-10-17 10:25:35,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-10-17 10:25:35,951 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:25:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:25:35,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:25:35,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:25:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:25:36,012 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:25:36,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:25:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:25:36,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:36,182 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 [2022-10-17 10:25:36,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:36,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 7 states. [2022-10-17 10:25:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:25:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-10-17 10:25:36,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:25:36,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:36,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:25:36,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:36,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:25:36,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:36,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2022-10-17 10:25:36,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:25:36,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2022-10-17 10:25:36,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-10-17 10:25:36,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:25:36,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-10-17 10:25:36,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:25:36,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-10-17 10:25:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-10-17 10:25:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-10-17 10:25:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-10-17 10:25:36,330 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:25:36,331 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:25:36,335 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:25:36,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-10-17 10:25:36,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:25:36,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:25:36,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:25:36,337 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:25:36,337 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:25:36,337 INFO L748 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 69#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 75#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 71#L23 [2022-10-17 10:25:36,338 INFO L750 eck$LassoCheckResult]: Loop: 71#L23 assume main_~x~0#1 >= 0;main_~x~0#1 := main_~x~0#1 - 1; 70#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 71#L23 [2022-10-17 10:25:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:36,344 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:25:36,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:36,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433690564] [2022-10-17 10:25:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:36,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-10-17 10:25:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:36,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826652636] [2022-10-17 10:25:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-10-17 10:25:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:25:36,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776702749] [2022-10-17 10:25:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:25:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:25:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:25:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:25:36,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:25:36,493 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:25:36,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:25:36,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:25:36,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:25:36,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:25:36,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:25:36,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:25:36,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2022-10-17 10:25:36,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:25:36,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:25:36,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:36,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:36,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:36,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:25:36,598 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:25:36,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:36,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:36,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:36,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:36,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:25:36,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:25:36,623 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:25:36,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:36,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:36,673 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:36,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:36,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:36,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:25:36,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:25:36,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:25:36,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:36,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:36,752 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:36,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:25:36,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:36,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:25:36,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:36,834 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:36,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:25:36,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:25:36,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:25:36,987 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:25:36,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:36,995 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:25:36,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:25:36,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:25:36,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:25:36,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:25:36,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:36,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:25:36,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:25:36,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2022-10-17 10:25:36,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:25:36,996 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:25:36,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:37,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:37,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:25:37,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:25:37,126 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:25:37,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:37,127 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:37,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:25:37,134 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 [2022-10-17 10:25:37,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:37,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:37,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:37,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:37,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:25:37,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:25:37,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:25:37,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:37,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:37,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:37,202 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:37,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:25:37,210 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 [2022-10-17 10:25:37,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:37,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:37,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:25:37,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:37,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:25:37,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:25:37,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:25:37,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:37,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:37,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:37,284 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:37,290 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 [2022-10-17 10:25:37,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:25:37,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:25:37,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:25:37,302 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 10:25:37,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:25:37,304 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:25:37,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:25:37,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:25:37,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:25:37,332 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:25:37,332 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:25:37,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:25:37,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:25:37,334 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:25:37,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:25:37,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:25:37,366 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:25:37,366 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:25:37,366 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-10-17 10:25:37,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:37,399 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:25:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:25:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:25:37,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:25:37,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:25:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:25:37,454 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:25:37,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:25:37,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:25:37,508 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 [2022-10-17 10:25:37,509 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:37,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 4 states. [2022-10-17 10:25:37,528 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 [2022-10-17 10:25:37,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:25:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-10-17 10:25:37,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2022-10-17 10:25:37,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:37,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2022-10-17 10:25:37,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:37,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-10-17 10:25:37,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:25:37,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2022-10-17 10:25:37,534 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:25:37,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2022-10-17 10:25:37,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:25:37,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:25:37,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:25:37,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:25:37,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:25:37,535 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:25:37,536 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:25:37,536 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:25:37,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:25:37,536 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:25:37,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:25:37,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:25:37 BoogieIcfgContainer [2022-10-17 10:25:37,546 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:25:37,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:25:37,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:25:37,547 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:25:37,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:25:34" (3/4) ... [2022-10-17 10:25:37,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:25:37,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:25:37,553 INFO L158 Benchmark]: Toolchain (without parser) took 3853.15ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 45.7MB in the beginning and 53.0MB in the end (delta: -7.3MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-10-17 10:25:37,553 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:25:37,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.89ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 45.5MB in the beginning and 93.3MB in the end (delta: -47.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:25:37,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.65ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 91.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:25:37,561 INFO L158 Benchmark]: Boogie Preprocessor took 26.25ms. Allocated memory is still 115.3MB. Free memory was 91.7MB in the beginning and 90.8MB in the end (delta: 938.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:25:37,561 INFO L158 Benchmark]: RCFGBuilder took 344.29ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 82.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:25:37,562 INFO L158 Benchmark]: BuchiAutomizer took 3139.70ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 53.0MB in the end (delta: 29.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-10-17 10:25:37,562 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 115.3MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:25:37,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.89ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 45.5MB in the beginning and 93.3MB in the end (delta: -47.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.65ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 91.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.25ms. Allocated memory is still 115.3MB. Free memory was 91.7MB in the beginning and 90.8MB in the end (delta: 938.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 344.29ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 82.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3139.70ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 53.0MB in the end (delta: 29.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 115.3MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 8 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax178 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf131 smp95 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:25:37,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:25:37,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b0afdc-b215-426d-ad81-d2c844d99575/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE