./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:00:05,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:00:05,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:00:05,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:00:05,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:00:05,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:00:05,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:00:05,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:00:05,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:00:05,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:00:05,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:00:05,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:00:05,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:00:05,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:00:05,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:00:05,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:00:05,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:00:05,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:00:05,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:00:05,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:00:05,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:00:05,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:00:05,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:00:05,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:00:05,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:00:05,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:00:05,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:00:05,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:00:05,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:00:05,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:00:05,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:00:05,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:00:05,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:00:05,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:00:05,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:00:05,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:00:05,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:00:05,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:00:05,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:00:05,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:00:05,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:00:05,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 12:00:05,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:00:05,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:00:05,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:00:05,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:00:05,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:00:05,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:00:05,733 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:00:05,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:00:05,734 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:00:05,734 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:00:05,734 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:00:05,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:00:05,735 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:00:05,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:00:05,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:00:05,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:00:05,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:00:05,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:00:05,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:00:05,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:00:05,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:00:05,737 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:00:05,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:00:05,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:00:05,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:00:05,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:00:05,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:00:05,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:00:05,740 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:00:05,740 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_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2022-11-16 12:00:06,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:00:06,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:00:06,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:00:06,072 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:00:06,073 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:00:06,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-bwb/and-02.c [2022-11-16 12:00:06,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/data/85febda74/a1cb08b9145d4405afdaed82c4e9eada/FLAG0ccafaf70 [2022-11-16 12:00:06,654 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:00:06,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/sv-benchmarks/c/termination-bwb/and-02.c [2022-11-16 12:00:06,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/data/85febda74/a1cb08b9145d4405afdaed82c4e9eada/FLAG0ccafaf70 [2022-11-16 12:00:07,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/data/85febda74/a1cb08b9145d4405afdaed82c4e9eada [2022-11-16 12:00:07,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:00:07,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:00:07,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:00:07,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:00:07,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:00:07,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159b103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07, skipping insertion in model container [2022-11-16 12:00:07,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:00:07,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:00:07,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:00:07,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:00:07,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:00:07,339 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:00:07,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07 WrapperNode [2022-11-16 12:00:07,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:00:07,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:00:07,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:00:07,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:00:07,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,383 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2022-11-16 12:00:07,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:00:07,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:00:07,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:00:07,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:00:07,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:00:07,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:00:07,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:00:07,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:00:07,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (1/1) ... [2022-11-16 12:00:07,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:07,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:07,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:07,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:00:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:00:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:00:07,564 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:00:07,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:00:07,683 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:00:07,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:00:07,691 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:00:07,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:07 BoogieIcfgContainer [2022-11-16 12:00:07,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:00:07,695 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:00:07,695 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:00:07,706 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:00:07,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:00:07,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:00:07" (1/3) ... [2022-11-16 12:00:07,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560f4696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:00:07, skipping insertion in model container [2022-11-16 12:00:07,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:00:07,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:07" (2/3) ... [2022-11-16 12:00:07,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560f4696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:00:07, skipping insertion in model container [2022-11-16 12:00:07,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:00:07,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:07" (3/3) ... [2022-11-16 12:00:07,717 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2022-11-16 12:00:07,857 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:00:07,857 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:00:07,858 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:00:07,858 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:00:07,858 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:00:07,858 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:00:07,858 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:00:07,859 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:00:07,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:07,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:07,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:07,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:07,927 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:00:07,938 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:00:07,938 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:00:07,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:07,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:07,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:07,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:07,941 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:00:07,942 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:00:07,951 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-1true [2022-11-16 12:00:07,966 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 6#L18-1true [2022-11-16 12:00:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 12:00:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:08,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842951354] [2022-11-16 12:00:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:08,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 1 times [2022-11-16 12:00:08,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:08,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242579499] [2022-11-16 12:00:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 925811, now seen corresponding path program 1 times [2022-11-16 12:00:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:08,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587776625] [2022-11-16 12:00:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:08,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:08,417 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:08,418 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:08,418 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:08,418 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:08,419 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:08,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:08,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:08,419 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2022-11-16 12:00:08,419 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:08,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:08,441 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:08,572 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:08,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:00:08,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:08,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:08,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:08,624 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: [] [2022-11-16 12:00:08,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:08,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:08,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:08,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:00:08,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:08,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:00:08,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:08,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:08,724 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:08,724 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2022-11-16 12:00:08,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:08,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:08,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:08,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:00:08,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:08,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,789 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:00:08,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:08,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:08,827 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:00:08,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:08,839 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:08,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:08,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:08,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:08,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:00:08,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:08,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:08,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2022-11-16 12:00:08,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:08,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:08,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,854 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:08,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:08,938 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:00:08,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:08,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:08,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:08,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:08,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:00:08,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:08,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:08,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:08,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:08,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:08,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:08,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:09,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:09,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:09,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,013 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:00:09,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:09,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:09,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:09,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:09,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:09,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:09,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:09,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:09,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:09,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:09,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,066 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 12:00:09,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:09,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:09,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:09,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:09,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:09,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:09,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:09,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:09,094 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:00:09,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:00:09,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:00:09,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,139 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:00:09,139 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:00:09,139 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:00:09,140 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-16 12:00:09,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 12:00:09,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-16 12:00:09,159 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:00:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:09,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:00:09,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:09,239 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:00:09,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:09,309 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 12:00:09,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:09,413 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 34 states and 49 transitions. Complement of second has 6 states. [2022-11-16 12:00:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 12:00:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-16 12:00:09,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-16 12:00:09,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:09,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-16 12:00:09,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:09,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-16 12:00:09,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:09,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 49 transitions. [2022-11-16 12:00:09,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:00:09,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 17 states and 25 transitions. [2022-11-16 12:00:09,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-16 12:00:09,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-16 12:00:09,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-16 12:00:09,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 25 transitions. [2022-11-16 12:00:09,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:09,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 25 transitions. [2022-11-16 12:00:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 25 transitions. [2022-11-16 12:00:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-16 12:00:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2022-11-16 12:00:09,523 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-11-16 12:00:09,523 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-11-16 12:00:09,523 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:00:09,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2022-11-16 12:00:09,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-16 12:00:09,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:09,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:09,524 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:00:09,525 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 12:00:09,525 INFO L748 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 90#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 91#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 83#L18 [2022-11-16 12:00:09,525 INFO L750 eck$LassoCheckResult]: Loop: 83#L18 assume main_~x~0#1 > 0; 84#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 92#L19-2 assume main_~x~0#1 == main_~a~0#1;main_~x~0#1 := main_~x~0#1; 88#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 83#L18 [2022-11-16 12:00:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-16 12:00:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:09,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671511367] [2022-11-16 12:00:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1359547, now seen corresponding path program 1 times [2022-11-16 12:00:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:09,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567336841] [2022-11-16 12:00:09,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:09,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:09,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663394, now seen corresponding path program 1 times [2022-11-16 12:00:09,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:09,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317241036] [2022-11-16 12:00:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:09,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:09,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:09,657 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:09,657 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:09,657 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:09,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:09,658 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:09,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:09,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:09,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration2_Loop [2022-11-16 12:00:09,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:09,658 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:09,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:09,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:09,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:09,737 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:09,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:09,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:09,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 12:00:09,769 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:09,769 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:00:09,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:09,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,782 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 12:00:09,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:09,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:09,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-16 12:00:09,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 12:00:09,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:09,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:09,883 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:00:09,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-16 12:00:09,898 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:09,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:09,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:09,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:09,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:00:09,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:09,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:09,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration2_Loop [2022-11-16 12:00:09,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:09,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:09,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:09,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:09,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:09,972 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:00:09,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:09,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:09,976 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:09,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 12:00:09,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:09,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:09,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:09,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:09,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:09,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:09,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:09,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:10,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:10,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:10,012 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:10,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:10,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 12:00:10,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:10,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:10,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:10,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:10,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:10,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:10,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:10,064 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:00:10,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:00:10,069 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:00:10,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:10,071 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:10,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 12:00:10,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:00:10,075 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:00:10,075 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:00:10,075 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2022-11-16 12:00:10,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:10,080 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:00:10,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:10,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:00:10,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:10,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:00:10,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:10,181 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 12:00:10,182 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:10,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 60 transitions. Complement of second has 8 states. [2022-11-16 12:00:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 12:00:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-16 12:00:10,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-16 12:00:10,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:10,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-16 12:00:10,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:10,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-16 12:00:10,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:10,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 60 transitions. [2022-11-16 12:00:10,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:10,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 54 transitions. [2022-11-16 12:00:10,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-16 12:00:10,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-16 12:00:10,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 54 transitions. [2022-11-16 12:00:10,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:10,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 54 transitions. [2022-11-16 12:00:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 54 transitions. [2022-11-16 12:00:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-11-16 12:00:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 27 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2022-11-16 12:00:10,245 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-11-16 12:00:10,245 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-11-16 12:00:10,246 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 12:00:10,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 46 transitions. [2022-11-16 12:00:10,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:10,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:10,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:10,248 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 12:00:10,248 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:00:10,248 INFO L748 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 191#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 194#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 201#L18 assume main_~x~0#1 > 0; 187#L19 [2022-11-16 12:00:10,248 INFO L750 eck$LassoCheckResult]: Loop: 187#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_~x~0#1 := 0; 182#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 192#L18 assume main_~x~0#1 > 0; 187#L19 [2022-11-16 12:00:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-16 12:00:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518446534] [2022-11-16 12:00:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,259 INFO L85 PathProgramCache]: Analyzing trace with hash 46483, now seen corresponding path program 1 times [2022-11-16 12:00:10,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:10,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054861515] [2022-11-16 12:00:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:10,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:10,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:00:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054861515] [2022-11-16 12:00:10,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054861515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:00:10,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:00:10,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:00:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927550269] [2022-11-16 12:00:10,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:00:10,306 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 12:00:10,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:00:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:00:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:00:10,311 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:10,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:00:10,329 INFO L93 Difference]: Finished difference Result 30 states and 46 transitions. [2022-11-16 12:00:10,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 46 transitions. [2022-11-16 12:00:10,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:10,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 43 transitions. [2022-11-16 12:00:10,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-16 12:00:10,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-16 12:00:10,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 43 transitions. [2022-11-16 12:00:10,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:10,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 43 transitions. [2022-11-16 12:00:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 43 transitions. [2022-11-16 12:00:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-16 12:00:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2022-11-16 12:00:10,336 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 43 transitions. [2022-11-16 12:00:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:00:10,338 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 43 transitions. [2022-11-16 12:00:10,338 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 12:00:10,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 43 transitions. [2022-11-16 12:00:10,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:10,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:10,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:10,340 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 12:00:10,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 12:00:10,340 INFO L748 eck$LassoCheckResult]: Stem: 253#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 254#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 255#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 256#L18 assume main_~x~0#1 > 0; 258#L19 [2022-11-16 12:00:10,340 INFO L750 eck$LassoCheckResult]: Loop: 258#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 245#L19-2 assume !(main_~x~0#1 == main_~a~0#1);main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_~x~0#1 <= main_~x~0#1 && main_~x~0#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_~x~0#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_~x~0#1 > main_~x~0#1 + main_~a~0#1; 246#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 262#L18 assume main_~x~0#1 > 0; 258#L19 [2022-11-16 12:00:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2022-11-16 12:00:10,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:10,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915358498] [2022-11-16 12:00:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:10,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1512969, now seen corresponding path program 1 times [2022-11-16 12:00:10,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:10,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549072680] [2022-11-16 12:00:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:10,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash 295992302, now seen corresponding path program 1 times [2022-11-16 12:00:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:10,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924936659] [2022-11-16 12:00:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:10,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:10,488 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:10,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:10,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:10,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:10,488 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:10,488 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,488 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:10,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:10,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration4_Loop [2022-11-16 12:00:10,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:10,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:10,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:10,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:10,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:10,760 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:10,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:10,763 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:10,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:10,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:10,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 12:00:10,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:10,816 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:10,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 12:00:10,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:10,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:10,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:10,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=7, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 0, 1] Nus: [0, 0] [2022-11-16 12:00:10,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:10,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:10,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:10,948 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:10,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:10,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:10,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 12:00:10,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:10,987 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:00:10,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,031 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:11,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:11,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:11,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:11,032 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:11,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:11,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:11,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration4_Lasso [2022-11-16 12:00:11,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:11,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:11,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:11,318 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:11,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,323 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 12:00:11,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:11,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:11,358 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:11,358 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: [] [2022-11-16 12:00:11,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,368 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:11,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:11,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 12:00:11,402 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:11,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:00:11,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,416 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:11,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:11,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 12:00:11,443 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:11,443 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: [] [2022-11-16 12:00:11,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,448 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:11,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:11,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 12:00:11,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,492 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 12:00:11,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:11,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:11,687 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:00:11,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-16 12:00:11,691 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:11,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:11,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:11,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:11,691 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:00:11,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:11,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:11,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration4_Lasso [2022-11-16 12:00:11,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:11,692 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:11,693 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,705 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,708 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:11,949 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:11,950 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:00:11,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,951 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:11,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 12:00:11,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:11,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:11,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:11,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:11,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:11,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:11,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:11,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:11,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:11,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:11,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:11,991 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:11,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:12,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 12:00:12,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:12,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:12,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:12,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:12,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:12,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:12,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:12,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:12,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:12,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:12,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:12,040 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:12,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:12,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 12:00:12,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:12,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:12,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:12,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:12,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:12,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:12,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:12,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:12,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:12,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:12,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:12,080 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:12,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:12,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 12:00:12,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:12,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:12,099 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2022-11-16 12:00:12,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:12,193 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2022-11-16 12:00:12,193 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2022-11-16 12:00:12,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:00:12,914 INFO L443 ModelExtractionUtils]: Simplification made 35 calls to the SMT solver. [2022-11-16 12:00:12,914 INFO L444 ModelExtractionUtils]: 16 out of 40 variables were initially zero. Simplification set additionally 19 variables to zero. [2022-11-16 12:00:12,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:12,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:12,916 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:12,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 12:00:12,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:00:12,943 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 12. [2022-11-16 12:00:12,943 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:00:12,944 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2022-11-16 12:00:12,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:12,959 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-16 12:00:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:12,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:00:12,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:13,040 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:00:13,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:13,101 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2022-11-16 12:00:13,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 20 Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:13,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 20. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 92 transitions. Complement of second has 10 states. [2022-11-16 12:00:13,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-16 12:00:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2022-11-16 12:00:13,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-16 12:00:13,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:13,188 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 12:00:13,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:13,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:00:13,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:13,275 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:00:13,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:13,364 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 3 loop predicates [2022-11-16 12:00:13,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 20 Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:13,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:13,442 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 20. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 108 transitions. Complement of second has 12 states. [2022-11-16 12:00:13,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2022-11-16 12:00:13,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:13,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2022-11-16 12:00:13,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-16 12:00:13,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:13,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-16 12:00:13,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:13,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 4 letters. Loop has 8 letters. [2022-11-16 12:00:13,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:13,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 108 transitions. [2022-11-16 12:00:13,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:13,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 72 states and 106 transitions. [2022-11-16 12:00:13,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-16 12:00:13,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-16 12:00:13,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 106 transitions. [2022-11-16 12:00:13,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:13,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 72 states and 106 transitions. [2022-11-16 12:00:13,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 106 transitions. [2022-11-16 12:00:13,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2022-11-16 12:00:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 59 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2022-11-16 12:00:13,455 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 89 transitions. [2022-11-16 12:00:13,455 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 89 transitions. [2022-11-16 12:00:13,455 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 12:00:13,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 89 transitions. [2022-11-16 12:00:13,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:00:13,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:13,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:13,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-11-16 12:00:13,457 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 12:00:13,458 INFO L748 eck$LassoCheckResult]: Stem: 538#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 539#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 534#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 536#L18 assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 533#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 544#L18 assume main_~x~0#1 > 0; 540#L19 [2022-11-16 12:00:13,458 INFO L750 eck$LassoCheckResult]: Loop: 540#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 541#L19-2 assume !(main_~x~0#1 == main_~a~0#1);main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_~x~0#1 <= main_~x~0#1 && main_~x~0#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_~x~0#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_~x~0#1 > main_~x~0#1 + main_~a~0#1; 547#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 548#L18 assume main_~x~0#1 > 0; 540#L19 [2022-11-16 12:00:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash 889704726, now seen corresponding path program 1 times [2022-11-16 12:00:13,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:13,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468480937] [2022-11-16 12:00:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:13,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:00:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468480937] [2022-11-16 12:00:13,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468480937] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:00:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801634830] [2022-11-16 12:00:13,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:13,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:00:13,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:13,519 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:00:13,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-16 12:00:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:13,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:00:13,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:13,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:00:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:13,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801634830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:00:13,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:00:13,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-11-16 12:00:13,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867573546] [2022-11-16 12:00:13,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:00:13,598 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 12:00:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1512969, now seen corresponding path program 2 times [2022-11-16 12:00:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:13,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119420361] [2022-11-16 12:00:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:13,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:13,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:13,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:13,672 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:13,672 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:13,672 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:13,672 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:13,672 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:13,673 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:13,673 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:13,673 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:13,673 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2022-11-16 12:00:13,673 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:13,673 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:13,674 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:13,687 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:13,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:13,869 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:13,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:13,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:13,875 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:13,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:13,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:13,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 12:00:13,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:13,917 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:13,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:13,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:13,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 12:00:14,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:14,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=7, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=2, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 0, 1] Nus: [0, 0] [2022-11-16 12:00:14,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,033 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:14,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:14,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-16 12:00:14,074 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:14,074 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:00:14,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:00:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:00:14,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:00:14,078 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. cyclomatic complexity: 38 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:00:14,109 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2022-11-16 12:00:14,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 62 transitions. [2022-11-16 12:00:14,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 12:00:14,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 27 states and 35 transitions. [2022-11-16 12:00:14,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-16 12:00:14,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-16 12:00:14,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2022-11-16 12:00:14,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:14,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-11-16 12:00:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2022-11-16 12:00:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-16 12:00:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-11-16 12:00:14,114 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-11-16 12:00:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:00:14,115 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-11-16 12:00:14,115 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 12:00:14,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2022-11-16 12:00:14,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 12:00:14,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:00:14,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:00:14,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:00:14,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:00:14,117 INFO L748 eck$LassoCheckResult]: Stem: 678#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 679#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 683#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 684#L18 assume main_~x~0#1 > 0; 680#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 671#L19-2 assume !(main_~x~0#1 == main_~a~0#1);main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_~x~0#1 <= main_~x~0#1 && main_~x~0#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_~x~0#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_~x~0#1 > main_~x~0#1 + main_~a~0#1; 672#L18-1 [2022-11-16 12:00:14,117 INFO L750 eck$LassoCheckResult]: Loop: 672#L18-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 675#L18 assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 672#L18-1 [2022-11-16 12:00:14,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:14,118 INFO L85 PathProgramCache]: Analyzing trace with hash 889692491, now seen corresponding path program 2 times [2022-11-16 12:00:14,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:14,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471432653] [2022-11-16 12:00:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:14,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:14,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:14,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 2 times [2022-11-16 12:00:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190301013] [2022-11-16 12:00:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:14,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:00:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:00:14,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:00:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash 295992315, now seen corresponding path program 1 times [2022-11-16 12:00:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:14,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240444138] [2022-11-16 12:00:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:14,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:00:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240444138] [2022-11-16 12:00:14,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240444138] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:00:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187948598] [2022-11-16 12:00:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:14,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:00:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,194 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-16 12:00:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:14,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:00:14,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:14,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:00:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:14,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187948598] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:00:14,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:00:14,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-11-16 12:00:14,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773878585] [2022-11-16 12:00:14,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:00:14,335 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:14,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:14,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:14,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:14,335 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:00:14,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:14,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:14,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration6_Loop [2022-11-16 12:00:14,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:14,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:14,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,341 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:14,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:00:14,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,416 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:14,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:14,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 12:00:14,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,454 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:14,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:14,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 12:00:14,494 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:00:14,495 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2022-11-16 12:00:14,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,505 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:00:14,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:14,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 12:00:14,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,552 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:00:14,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:00:14,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 12:00:14,594 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:00:14,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,598 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:00:14,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:00:14,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:00:14,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:00:14,598 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:00:14,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:00:14,598 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:00:14,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration6_Loop [2022-11-16 12:00:14,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:00:14,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:00:14,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,606 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,620 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:00:14,662 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:00:14,662 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:00:14,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,663 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:14,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 12:00:14,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:14,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:14,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:14,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:14,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:14,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:14,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:14,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:00:14,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-11-16 12:00:14,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,699 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-16 12:00:14,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:00:14,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:00:14,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:00:14,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:00:14,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:00:14,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:00:14,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:00:14,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:00:14,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:00:14,760 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-16 12:00:14,760 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:00:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:00:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:00:14,762 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:00:14,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-16 12:00:14,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:00:14,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:00:14,765 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:00:14,765 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-16 12:00:14,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:14,771 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:00:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:14,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:00:14,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:14,815 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:00:14,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:00:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:00:14,820 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 12:00:14,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 31 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 75 transitions. Complement of second has 5 states. [2022-11-16 12:00:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 12:00:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-16 12:00:14,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-16 12:00:14,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:14,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 2 letters. [2022-11-16 12:00:14,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:14,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-16 12:00:14,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:00:14,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 75 transitions. [2022-11-16 12:00:14,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 12:00:14,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 37 states and 49 transitions. [2022-11-16 12:00:14,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-16 12:00:14,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-16 12:00:14,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2022-11-16 12:00:14,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:00:14,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 49 transitions. [2022-11-16 12:00:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2022-11-16 12:00:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2022-11-16 12:00:14,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2022-11-16 12:00:14,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2022-11-16 12:00:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:00:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:00:14,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:00:14,853 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:00:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:00:14,932 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2022-11-16 12:00:14,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2022-11-16 12:00:14,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:00:14,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2022-11-16 12:00:14,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:00:14,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:00:14,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:00:14,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:00:14,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:00:14,934 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:00:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:00:14,935 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:00:14,935 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-16 12:00:14,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:00:14,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:00:14,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:00:14,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:00:14 BoogieIcfgContainer [2022-11-16 12:00:14,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:00:14,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:00:14,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:00:14,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:00:14,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:07" (3/4) ... [2022-11-16 12:00:14,947 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:00:14,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:00:14,948 INFO L158 Benchmark]: Toolchain (without parser) took 7915.36ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 120.6MB in the beginning and 77.1MB in the end (delta: 43.5MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-16 12:00:14,949 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:00:14,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.78ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 127.9MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:00:14,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.75ms. Allocated memory is still 151.0MB. Free memory was 127.9MB in the beginning and 126.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:00:14,950 INFO L158 Benchmark]: Boogie Preprocessor took 19.99ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 125.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:00:14,950 INFO L158 Benchmark]: RCFGBuilder took 287.73ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 116.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:00:14,951 INFO L158 Benchmark]: BuchiAutomizer took 7248.20ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 116.3MB in the beginning and 77.1MB in the end (delta: 39.2MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2022-11-16 12:00:14,951 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 182.5MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:00:14,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.78ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 127.9MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.75ms. Allocated memory is still 151.0MB. Free memory was 127.9MB in the beginning and 126.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.99ms. Allocated memory is still 151.0MB. Free memory was 126.3MB in the beginning and 125.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.73ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 116.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7248.20ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 116.3MB in the beginning and 77.1MB in the end (delta: 39.2MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 182.5MB. Free memory is still 77.1MB. 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 7 terminating modules (3 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function a and consists of 5 locations. One deterministic module has affine ranking function a and consists of 8 locations. One deterministic module has affine ranking function -1 * x and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 29 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 42 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN1 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp89 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf95 smp86 dnf256 smp86 tf106 neg95 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 865ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:00:14,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-16 12:00:15,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2022-11-16 12:00:15,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-11-16 12:00:15,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4204ca-83c5-4e82-b4bb-fabab1b1614d/bin/uautomizer-tPACEb0tL8/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