./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/parity1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/parity1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc --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 d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 --- 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-5e519f3 [2022-11-02 20:10:16,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:10:16,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:10:16,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:10:16,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:10:16,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:10:16,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:10:16,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:10:16,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:10:16,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:10:16,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:10:16,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:10:16,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:10:16,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:10:16,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:10:16,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:10:16,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:10:16,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:10:16,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:10:16,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:10:16,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:10:16,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:10:16,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:10:16,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:10:16,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:10:16,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:10:16,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:10:16,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:10:16,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:10:16,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:10:16,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:10:16,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:10:16,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:10:16,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:10:16,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:10:16,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:10:16,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:10:16,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:10:16,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:10:16,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:10:16,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:10:16,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:10:16,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:10:16,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:10:16,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:10:16,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:10:16,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:10:16,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:10:16,632 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:10:16,632 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:10:16,632 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:10:16,633 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:10:16,634 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:10:16,634 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:10:16,634 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:10:16,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:10:16,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:10:16,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:10:16,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:10:16,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:10:16,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:10:16,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:10:16,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:10:16,636 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:10:16,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:10:16,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:10:16,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:10:16,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:10:16,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:10:16,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:10:16,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:10:16,639 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_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 [2022-11-02 20:10:16,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:10:16,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:10:16,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:10:16,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:10:16,947 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:10:16,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-bwb/parity1.i [2022-11-02 20:10:17,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/data/2ca585bfa/2ebd3309dd2440ba8c1210cd2e366a95/FLAG6af5d1d02 [2022-11-02 20:10:17,439 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:10:17,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/sv-benchmarks/c/termination-bwb/parity1.i [2022-11-02 20:10:17,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/data/2ca585bfa/2ebd3309dd2440ba8c1210cd2e366a95/FLAG6af5d1d02 [2022-11-02 20:10:17,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/data/2ca585bfa/2ebd3309dd2440ba8c1210cd2e366a95 [2022-11-02 20:10:17,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:10:17,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:10:17,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:17,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:10:17,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:10:17,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:17" (1/1) ... [2022-11-02 20:10:17,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7fe8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:17, skipping insertion in model container [2022-11-02 20:10:17,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:17" (1/1) ... [2022-11-02 20:10:17,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:10:17,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:10:18,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:18,088 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:10:18,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:18,122 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:10:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18 WrapperNode [2022-11-02 20:10:18,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:18,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:18,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:10:18,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:10:18,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,159 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-11-02 20:10:18,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:18,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:10:18,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:10:18,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:10:18,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:10:18,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:10:18,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:10:18,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:10:18,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (1/1) ... [2022-11-02 20:10:18,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:18,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:18,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:18,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:10:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:10:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:10:18,347 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:10:18,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:10:18,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:10:18,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:10:18,447 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:10:18,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:18 BoogieIcfgContainer [2022-11-02 20:10:18,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:10:18,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:10:18,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:10:18,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:10:18,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:10:18,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:10:17" (1/3) ... [2022-11-02 20:10:18,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370fd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:10:18, skipping insertion in model container [2022-11-02 20:10:18,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:10:18,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:18" (2/3) ... [2022-11-02 20:10:18,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370fd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:10:18, skipping insertion in model container [2022-11-02 20:10:18,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:10:18,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:18" (3/3) ... [2022-11-02 20:10:18,460 INFO L332 chiAutomizerObserver]: Analyzing ICFG parity1.i [2022-11-02 20:10:18,516 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:10:18,516 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:10:18,516 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:10:18,516 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:10:18,517 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:10:18,517 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:10:18,517 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:10:18,517 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:10:18,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:18,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:10:18,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:10:18,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:10:18,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:10:18,549 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:10:18,549 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:10:18,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:18,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:10:18,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:10:18,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:10:18,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:10:18,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:10:18,559 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L13true assume !(~v~0 < 0); 7#L14-1true [2022-11-02 20:10:18,560 INFO L750 eck$LassoCheckResult]: Loop: 7#L14-1true assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;~v~0 := (if 0 == ~v~0 || 0 == ~v~0 - 1 then 0 else (if 1 == ~v~0 - 1 then (if 1 == ~v~0 || 0 == ~v~0 then ~v~0 else (if ~v~0 >= 0 then ~v~0 % 2 else ~bitwiseAnd(~v~0, ~v~0 - 1))) else (if 1 == ~v~0 then (if 1 == ~v~0 - 1 || 0 == ~v~0 - 1 then ~v~0 - 1 else (if ~v~0 - 1 >= 0 then (~v~0 - 1) % 2 else ~bitwiseAnd(~v~0, ~v~0 - 1))) else ~bitwiseAnd(~v~0, ~v~0 - 1)))); 7#L14-1true [2022-11-02 20:10:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-02 20:10:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:18,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881655075] [2022-11-02 20:10:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:18,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:10:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:10:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-11-02 20:10:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:18,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143572725] [2022-11-02 20:10:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:18,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:10:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:10:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-11-02 20:10:18,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:18,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151077921] [2022-11-02 20:10:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:18,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:10:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:10:18,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:10:24,329 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:10:24,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:10:24,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:10:24,330 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:10:24,330 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:10:24,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:10:24,331 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:10:24,331 INFO L133 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2022-11-02 20:10:24,331 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:10:24,331 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:10:24,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,366 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:10:24,462 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:10:24,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:24,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:24,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:24,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:24,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:10:24,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:24,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:24,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:24,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:10:24,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:10:24,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:24,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:24,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=4}, {~parity~0=-8}, {~parity~0=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-02 20:10:24,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-11-02 20:10:24,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:24,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:24,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:10:24,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:24,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:24,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:24,637 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:24,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:24,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:24,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:24,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:10:24,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:24,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:24,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:24,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=4} Honda state: {~v~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:24,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:24,786 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:10:24,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:10:24,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:10:24,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:10:24,788 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:10:24,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:10:24,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:10:24,794 INFO L133 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Lasso [2022-11-02 20:10:24,794 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:10:24,794 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:10:24,795 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,832 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:10:24,963 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:10:24,963 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:10:24,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:24,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:24,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:24,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:24,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:10:25,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=0} Honda state: {~v~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:10:25,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,105 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:10:25,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:10:25,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,140 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=4}, {~parity~0=-8}, {~parity~0=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-02 20:10:25,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,164 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:10:25,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,178 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,178 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1.base=0} Honda state: {ULTIMATE.start_main_~z~0#1.base=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,205 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:10:25,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,218 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~y~0=0} Honda state: {~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:10:25,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,257 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,258 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,283 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:10:25,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,299 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,329 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:10:25,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,341 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-02 20:10:25,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,368 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:10:25,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1.offset=0} Honda state: {ULTIMATE.start_main_~z~0#1.offset=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-02 20:10:25,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:10:25,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:25,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:25,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:10:25,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:10:25,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:10:25,464 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:10:25,464 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:10:25,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:25,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:10:25 BoogieIcfgContainer [2022-11-02 20:10:25,491 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:10:25,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:10:25,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:10:25,492 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:10:25,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:18" (3/4) ... [2022-11-02 20:10:25,495 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:10:25,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:10:25,496 INFO L158 Benchmark]: Toolchain (without parser) took 7652.58ms. Allocated memory was 130.0MB in the beginning and 329.3MB in the end (delta: 199.2MB). Free memory was 94.3MB in the beginning and 159.2MB in the end (delta: -64.9MB). Peak memory consumption was 133.6MB. Max. memory is 16.1GB. [2022-11-02 20:10:25,497 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:10:25,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.58ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 106.1MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:10:25,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.03ms. Allocated memory is still 130.0MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:10:25,507 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 130.0MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 776.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:10:25,507 INFO L158 Benchmark]: RCFGBuilder took 254.19ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 95.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:10:25,508 INFO L158 Benchmark]: BuchiAutomizer took 7040.76ms. Allocated memory was 130.0MB in the beginning and 329.3MB in the end (delta: 199.2MB). Free memory was 94.6MB in the beginning and 160.3MB in the end (delta: -65.7MB). Peak memory consumption was 189.0MB. Max. memory is 16.1GB. [2022-11-02 20:10:25,508 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 329.3MB. Free memory was 160.3MB in the beginning and 159.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:10:25,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.58ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 106.1MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.03ms. Allocated memory is still 130.0MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 130.0MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 776.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 254.19ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 95.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7040.76ms. Allocated memory was 130.0MB in the beginning and 329.3MB in the end (delta: 199.2MB). Free memory was 94.6MB in the beginning and 160.3MB in the end (delta: -65.7MB). Peak memory consumption was 189.0MB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 329.3MB. Free memory was 160.3MB in the beginning and 159.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one module whose termination is unknown. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 6.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf100 smp47 dnf116 smp81 tf106 neg94 sie120 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: v & (v - 1) [17] (Reason bitwiseAnd) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" Loop: "assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;~v~0 := (if 0 == ~v~0 || 0 == ~v~0 - 1 then 0 else (if 1 == ~v~0 - 1 then (if 1 == ~v~0 || 0 == ~v~0 then ~v~0 else (if ~v~0 >= 0 then ~v~0 % 2 else ~bitwiseAnd(~v~0, ~v~0 - 1))) else (if 1 == ~v~0 then (if 1 == ~v~0 - 1 || 0 == ~v~0 - 1 then ~v~0 - 1 else (if ~v~0 - 1 >= 0 then (~v~0 - 1) % 2 else ~bitwiseAnd(~v~0, ~v~0 - 1))) else ~bitwiseAnd(~v~0, ~v~0 - 1))));" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-02 20:10:25,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_552b07da-3407-448b-b1d2-06f5b9b4a439/bin/uautomizer-Dbtcem3rbc/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN