./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:11:44,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:11:44,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:11:44,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:11:44,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:11:44,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:11:44,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:11:44,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:11:44,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:11:44,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:11:44,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:11:44,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:11:44,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:11:44,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:11:44,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:11:44,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:11:44,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:11:44,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:11:44,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:11:44,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:11:44,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:11:44,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:11:44,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:11:44,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:11:44,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:11:44,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:11:44,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:11:44,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:11:44,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:11:44,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:11:44,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:11:44,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:11:44,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:11:44,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:11:44,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:11:44,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:11:44,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:11:44,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:11:44,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:11:44,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:11:44,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:11:44,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:11:44,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:11:44,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:11:44,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:11:44,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:11:44,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:11:44,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:11:44,850 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:11:44,850 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:11:44,850 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:11:44,851 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:11:44,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:11:44,852 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:11:44,852 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:11:44,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:11:44,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:11:44,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:11:44,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:11:44,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:11:44,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:11:44,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:11:44,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:11:44,854 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:11:44,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:11:44,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:11:44,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:11:44,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:11:44,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:11:44,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:11:44,857 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:11:44,857 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_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 [2022-11-18 20:11:45,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:11:45,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:11:45,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:11:45,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:11:45,182 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:11:45,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-11-18 20:11:45,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/data/b47a6bb09/97240bdf3a07493283e7fe5a2a9f2372/FLAG958b1cdfe [2022-11-18 20:11:45,707 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:11:45,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-11-18 20:11:45,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/data/b47a6bb09/97240bdf3a07493283e7fe5a2a9f2372/FLAG958b1cdfe [2022-11-18 20:11:46,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/data/b47a6bb09/97240bdf3a07493283e7fe5a2a9f2372 [2022-11-18 20:11:46,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:11:46,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:11:46,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:46,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:11:46,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:11:46,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46, skipping insertion in model container [2022-11-18 20:11:46,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:11:46,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:11:46,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:46,320 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:11:46,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:46,344 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:11:46,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46 WrapperNode [2022-11-18 20:11:46,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:46,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:46,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:11:46,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:11:46,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,376 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-18 20:11:46,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:46,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:11:46,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:11:46,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:11:46,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:11:46,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:11:46,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:11:46,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:11:46,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (1/1) ... [2022-11-18 20:11:46,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:46,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:46,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:46,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:11:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:11:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:11:46,567 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:11:46,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:11:46,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:11:46,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:11:46,662 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:11:46,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:46 BoogieIcfgContainer [2022-11-18 20:11:46,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:11:46,665 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:11:46,665 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:11:46,670 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:11:46,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:11:46,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:11:46" (1/3) ... [2022-11-18 20:11:46,672 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2af1bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:11:46, skipping insertion in model container [2022-11-18 20:11:46,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:11:46,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:46" (2/3) ... [2022-11-18 20:11:46,673 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2af1bad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:11:46, skipping insertion in model container [2022-11-18 20:11:46,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:11:46,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:46" (3/3) ... [2022-11-18 20:11:46,674 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2022-11-18 20:11:46,725 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:11:46,725 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:11:46,725 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:11:46,725 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:11:46,725 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:11:46,725 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:11:46,725 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:11:46,726 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:11:46,729 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) [2022-11-18 20:11:46,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:11:46,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:46,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:46,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:11:46,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:46,752 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:11:46,753 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) [2022-11-18 20:11:46,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:11:46,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:46,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:46,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:11:46,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:46,762 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5#L18-1true [2022-11-18 20:11:46,763 INFO L750 eck$LassoCheckResult]: Loop: 5#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(main_~i~0#1 >= 10); 2#L12-2true assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 7#L15-1true assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5#L18-1true [2022-11-18 20:11:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 20:11:46,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:46,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348296459] [2022-11-18 20:11:46,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:46,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-11-18 20:11:46,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:46,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788802758] [2022-11-18 20:11:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:46,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:46,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-11-18 20:11:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:46,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418151393] [2022-11-18 20:11:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:46,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:47,068 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:47,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:47,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:47,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:47,070 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:47,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:47,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:47,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-11-18 20:11:47,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:47,071 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:47,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:47,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:47,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:11:47,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:47,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:47,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:47,295 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:47,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:47,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:47,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:11:47,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:47,359 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:47,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:47,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:47,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:11:47,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:47,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:47,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:11:47,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:47,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,479 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:47,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:47,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:47,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:47,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:47,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:47,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:47,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-11-18 20:11:47,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:47,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:47,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,492 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:47,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:47,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:47,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:11:47,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:47,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:47,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:47,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:47,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:47,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:47,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:47,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:47,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:47,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:47,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:11:47,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:47,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:47,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:47,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:47,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:11:47,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:11:47,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:47,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,719 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:47,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:11:47,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:47,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:47,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:47,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:47,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:11:47,747 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:11:47,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:47,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:47,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:47,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:47,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:47,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:47,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:47,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:47,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:47,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:11:47,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:47,823 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:47,823 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:11:47,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:47,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:47,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:47,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:11:47,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:47,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:47,831 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:47,832 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-11-18 20:11:47,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:47,844 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:47,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:47,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:47,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:47,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:47,963 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:47,965 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:48,026 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 4 states, 4 states have (on average 1.5) 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) Result 36 states and 54 transitions. Complement of second has 8 states. [2022-11-18 20:11:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-11-18 20:11:48,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-18 20:11:48,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-18 20:11:48,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-18 20:11:48,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-11-18 20:11:48,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-18 20:11:48,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-11-18 20:11:48,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:11:48,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 20:11:48,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-11-18 20:11:48,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:48,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-11-18 20:11:48,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-11-18 20:11:48,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-18 20:11:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-11-18 20:11:48,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-18 20:11:48,072 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-18 20:11:48,072 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:11:48,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-11-18 20:11:48,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-18 20:11:48,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:48,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:48,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 20:11:48,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:48,074 INFO L748 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 98#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 103#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 105#L12 [2022-11-18 20:11:48,075 INFO L750 eck$LassoCheckResult]: Loop: 105#L12 assume !(main_~i~0#1 >= 10); 91#L12-2 assume !(main_~i~0#1 <= 0); 93#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 107#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 105#L12 [2022-11-18 20:11:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-18 20:11:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719678685] [2022-11-18 20:11:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-11-18 20:11:48,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935123616] [2022-11-18 20:11:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-11-18 20:11:48,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518353498] [2022-11-18 20:11:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:48,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:48,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518353498] [2022-11-18 20:11:48,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518353498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:48,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:48,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673876750] [2022-11-18 20:11:48,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:48,192 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:48,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:48,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:48,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:48,193 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:48,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:48,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:48,194 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-11-18 20:11:48,194 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:48,194 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:48,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:48,250 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:48,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,251 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:11:48,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:48,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:48,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:48,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:48,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:48,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,339 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:11:48,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:48,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:48,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,412 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:11:48,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:48,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:48,461 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:48,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:48,470 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:48,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:48,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:48,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:48,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:48,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:48,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:48,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-11-18 20:11:48,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:48,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:48,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:48,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:48,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,543 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:48,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:48,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:48,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:48,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:48,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:11:48,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:11:48,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:11:48,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:48,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-18 20:11:48,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,592 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:11:48,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:48,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:48,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:48,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:48,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:48,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:48,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:48,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:48,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:48,621 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:48,621 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:11:48,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:48,623 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:48,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:48,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:48,626 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:48,626 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-11-18 20:11:48,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-18 20:11:48,632 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:48,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:11:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:48,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:48,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:48,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:48,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:48,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:48,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:48,791 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 [2022-11-18 20:11:48,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 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) [2022-11-18 20:11:48,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. 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 44 states and 73 transitions. Complement of second has 7 states. [2022-11-18 20:11:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:48,824 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) [2022-11-18 20:11:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-18 20:11:48,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-18 20:11:48,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-18 20:11:48,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-18 20:11:48,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:48,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 73 transitions. [2022-11-18 20:11:48,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-18 20:11:48,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 36 states and 59 transitions. [2022-11-18 20:11:48,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-18 20:11:48,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-18 20:11:48,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 59 transitions. [2022-11-18 20:11:48,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:48,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 59 transitions. [2022-11-18 20:11:48,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 59 transitions. [2022-11-18 20:11:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-18 20:11:48,833 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) [2022-11-18 20:11:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2022-11-18 20:11:48,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-11-18 20:11:48,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:48,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:48,838 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:48,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:48,852 INFO L93 Difference]: Finished difference Result 37 states and 56 transitions. [2022-11-18 20:11:48,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 56 transitions. [2022-11-18 20:11:48,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:11:48,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 49 transitions. [2022-11-18 20:11:48,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-18 20:11:48,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-18 20:11:48,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2022-11-18 20:11:48,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:48,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2022-11-18 20:11:48,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2022-11-18 20:11:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-11-18 20:11:48,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 25 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) [2022-11-18 20:11:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2022-11-18 20:11:48,859 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-11-18 20:11:48,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:48,860 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-11-18 20:11:48,860 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:11:48,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2022-11-18 20:11:48,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:11:48,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:48,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:48,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:11:48,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:48,868 INFO L748 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 276#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 277#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 264#L12-2 assume !(main_~i~0#1 <= 0); 265#L15-1 [2022-11-18 20:11:48,868 INFO L750 eck$LassoCheckResult]: Loop: 265#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 274#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 283#L12 assume !(main_~i~0#1 >= 10); 281#L12-2 assume !(main_~i~0#1 <= 0); 265#L15-1 [2022-11-18 20:11:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-11-18 20:11:48,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602384120] [2022-11-18 20:11:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-11-18 20:11:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008902119] [2022-11-18 20:11:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:48,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:48,903 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-11-18 20:11:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202744603] [2022-11-18 20:11:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:48,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:48,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:48,986 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:48,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:48,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:48,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:48,986 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:48,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:48,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:48,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:48,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-11-18 20:11:48,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:48,987 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:48,988 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:48,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,051 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:49,052 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:49,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,053 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:49,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:49,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:11:49,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:49,112 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:49,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:49,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:49,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:11:49,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:49,163 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:49,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:49,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,168 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:11:49,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:49,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:49,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-18 20:11:49,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,197 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:11:49,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:49,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:49,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:49,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:49,295 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:49,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:49,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:49,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:49,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:49,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:49,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:49,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-11-18 20:11:49,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:49,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:49,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:49,380 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:49,380 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:49,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:49,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:49,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:49,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:49,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:49,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:49,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:49,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:11:49,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:49,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:49,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,432 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:49,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:49,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:49,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:49,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:49,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:49,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:49,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 20:11:49,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:49,478 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 20:11:49,478 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:11:49,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,480 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,483 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:49,483 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:49,484 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:49,484 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:11:49,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:11:49,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:49,492 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:49,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:49,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:49,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,555 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:49,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,601 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 90 transitions. Complement of second has 7 states. [2022-11-18 20:11:49,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 20:11:49,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-18 20:11:49,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:49,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-18 20:11:49,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:49,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-18 20:11:49,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:49,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 90 transitions. [2022-11-18 20:11:49,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-18 20:11:49,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 85 transitions. [2022-11-18 20:11:49,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-11-18 20:11:49,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-11-18 20:11:49,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 85 transitions. [2022-11-18 20:11:49,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:49,619 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 85 transitions. [2022-11-18 20:11:49,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 85 transitions. [2022-11-18 20:11:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-11-18 20:11:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.6122448979591837) internal successors, (79), 48 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2022-11-18 20:11:49,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-11-18 20:11:49,632 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-11-18 20:11:49,633 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:11:49,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 79 transitions. [2022-11-18 20:11:49,634 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-18 20:11:49,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:49,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:49,637 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:11:49,638 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:49,639 INFO L748 eck$LassoCheckResult]: Stem: 406#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 407#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 412#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 425#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 418#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 419#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 433#L18-1 [2022-11-18 20:11:49,639 INFO L750 eck$LassoCheckResult]: Loop: 433#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 420#L12 assume !(main_~i~0#1 >= 10); 421#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 432#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 433#L18-1 [2022-11-18 20:11:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,641 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-11-18 20:11:49,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654350402] [2022-11-18 20:11:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654350402] [2022-11-18 20:11:49,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654350402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:49,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:49,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:49,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786095341] [2022-11-18 20:11:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,682 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:11:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2022-11-18 20:11:49,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581704450] [2022-11-18 20:11:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581704450] [2022-11-18 20:11:49,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581704450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:49,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:49,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:11:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690736373] [2022-11-18 20:11:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,719 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:11:49,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:49,721 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. cyclomatic complexity: 36 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:49,738 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2022-11-18 20:11:49,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2022-11-18 20:11:49,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:11:49,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 60 transitions. [2022-11-18 20:11:49,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-18 20:11:49,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-18 20:11:49,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 60 transitions. [2022-11-18 20:11:49,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:49,745 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 60 transitions. [2022-11-18 20:11:49,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 60 transitions. [2022-11-18 20:11:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-11-18 20:11:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.475) internal successors, (59), 39 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2022-11-18 20:11:49,755 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-11-18 20:11:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:49,756 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-11-18 20:11:49,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:11:49,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. [2022-11-18 20:11:49,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:11:49,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:49,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:49,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:11:49,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:49,762 INFO L748 eck$LassoCheckResult]: Stem: 505#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 506#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 514#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 521#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 519#L12-2 assume !(main_~i~0#1 <= 0); 511#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 512#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 531#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 501#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 502#L15-1 [2022-11-18 20:11:49,762 INFO L750 eck$LassoCheckResult]: Loop: 502#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 517#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 530#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 528#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 502#L15-1 [2022-11-18 20:11:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,763 INFO L85 PathProgramCache]: Analyzing trace with hash 588716517, now seen corresponding path program 1 times [2022-11-18 20:11:49,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962873679] [2022-11-18 20:11:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:49,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962873679] [2022-11-18 20:11:49,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962873679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:49,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:49,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:49,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189595187] [2022-11-18 20:11:49,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,830 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:11:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1709112, now seen corresponding path program 1 times [2022-11-18 20:11:49,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893907462] [2022-11-18 20:11:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:49,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893907462] [2022-11-18 20:11:49,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893907462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:49,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:49,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:11:49,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543556207] [2022-11-18 20:11:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,850 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:11:49,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:49,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:49,851 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. cyclomatic complexity: 24 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:49,861 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-11-18 20:11:49,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2022-11-18 20:11:49,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-18 20:11:49,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 45 states and 60 transitions. [2022-11-18 20:11:49,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-18 20:11:49,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-11-18 20:11:49,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 60 transitions. [2022-11-18 20:11:49,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:49,871 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-11-18 20:11:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 60 transitions. [2022-11-18 20:11:49,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-18 20:11:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-11-18 20:11:49,873 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-11-18 20:11:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:49,876 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-11-18 20:11:49,877 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:11:49,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2022-11-18 20:11:49,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-18 20:11:49,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:49,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:49,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:49,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:49,878 INFO L748 eck$LassoCheckResult]: Stem: 606#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 607#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 601#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 602#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 597#L12-2 assume !(main_~i~0#1 <= 0); 598#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 608#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 623#L12 assume !(main_~i~0#1 >= 10); 618#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 614#L15-1 [2022-11-18 20:11:49,878 INFO L750 eck$LassoCheckResult]: Loop: 614#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 615#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 620#L12 assume !(main_~i~0#1 >= 10); 619#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 614#L15-1 [2022-11-18 20:11:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,879 INFO L85 PathProgramCache]: Analyzing trace with hash 588716579, now seen corresponding path program 1 times [2022-11-18 20:11:49,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421435749] [2022-11-18 20:11:49,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421435749] [2022-11-18 20:11:49,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421435749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090193853] [2022-11-18 20:11:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:49,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,922 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 20:11:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:49,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:11:49,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:49,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090193853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:49,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:49,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 20:11:49,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343371194] [2022-11-18 20:11:49,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:49,998 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:11:49,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1709174, now seen corresponding path program 2 times [2022-11-18 20:11:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:49,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546490430] [2022-11-18 20:11:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:50,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:50,111 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:50,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:50,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:50,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:50,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:50,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:50,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:50,112 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-11-18 20:11:50,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:50,112 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:50,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,138 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:50,202 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:50,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,207 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:50,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:50,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:11:50,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:50,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:50,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,254 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:50,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:50,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:11:50,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:50,279 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:50,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,288 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:50,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:50,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 20:11:50,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,321 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:50,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:50,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 20:11:50,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:50,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,440 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:50,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:50,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:50,441 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:50,441 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:50,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:50,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:50,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-11-18 20:11:50,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:50,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:50,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,462 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,526 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:50,526 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:50,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,531 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:50,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:50,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:50,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:50,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:50,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:50,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:50,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:50,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:11:50,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:50,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:50,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:11:50,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:50,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:50,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:50,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:50,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:50,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:50,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:50,603 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:50,607 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:50,607 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 20:11:50,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,608 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:50,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:50,616 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:50,616 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:11:50,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:11:50,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,621 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:50,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:50,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:50,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:50,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:50,699 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:50,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:50,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 101 states and 136 transitions. Complement of second has 7 states. [2022-11-18 20:11:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-18 20:11:50,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-18 20:11:50,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:50,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-18 20:11:50,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:50,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 8 letters. [2022-11-18 20:11:50,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:50,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 136 transitions. [2022-11-18 20:11:50,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-11-18 20:11:50,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 91 states and 122 transitions. [2022-11-18 20:11:50,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-11-18 20:11:50,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-18 20:11:50,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 122 transitions. [2022-11-18 20:11:50,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:50,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 122 transitions. [2022-11-18 20:11:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 122 transitions. [2022-11-18 20:11:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2022-11-18 20:11:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2022-11-18 20:11:50,746 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-11-18 20:11:50,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:11:50,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:50,747 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:50,786 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2022-11-18 20:11:50,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 174 transitions. [2022-11-18 20:11:50,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-18 20:11:50,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 108 states and 137 transitions. [2022-11-18 20:11:50,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-18 20:11:50,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-11-18 20:11:50,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 137 transitions. [2022-11-18 20:11:50,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:50,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-11-18 20:11:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 137 transitions. [2022-11-18 20:11:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86. [2022-11-18 20:11:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 85 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-11-18 20:11:50,794 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-11-18 20:11:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:11:50,795 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-11-18 20:11:50,795 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:11:50,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 111 transitions. [2022-11-18 20:11:50,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-18 20:11:50,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:50,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:50,797 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:50,797 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:50,797 INFO L748 eck$LassoCheckResult]: Stem: 1075#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1076#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1079#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1088#L12 assume !(main_~i~0#1 >= 10); 1098#L12-2 assume !(main_~i~0#1 <= 0); 1097#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1095#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1092#L12 assume !(main_~i~0#1 >= 10); 1091#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1090#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1070#L18-1 [2022-11-18 20:11:50,797 INFO L750 eck$LassoCheckResult]: Loop: 1070#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1071#L12 assume !(main_~i~0#1 >= 10); 1120#L12-2 assume !(main_~i~0#1 <= 0); 1081#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1070#L18-1 [2022-11-18 20:11:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1449615143, now seen corresponding path program 1 times [2022-11-18 20:11:50,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:50,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119078357] [2022-11-18 20:11:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:50,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:50,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 2 times [2022-11-18 20:11:50,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:50,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382116953] [2022-11-18 20:11:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:50,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:50,814 INFO L85 PathProgramCache]: Analyzing trace with hash -130036926, now seen corresponding path program 2 times [2022-11-18 20:11:50,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:50,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781179133] [2022-11-18 20:11:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:50,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:50,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:50,886 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:50,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:50,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:50,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:50,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:50,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:50,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:50,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-11-18 20:11:50,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:50,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:50,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,896 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:50,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:50,948 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:50,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,950 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:50,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:50,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 20:11:50,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:50,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:50,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:50,992 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:50,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:50,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-18 20:11:51,020 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:51,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,024 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:51,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:51,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:51,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:51,024 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:51,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:51,025 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:51,025 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-11-18 20:11:51,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:51,025 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:51,026 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,079 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:51,079 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:51,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,081 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 20:11:51,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:51,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:51,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:51,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:51,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:51,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:51,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:51,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:51,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:51,108 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:51,108 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:11:51,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,112 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:51,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:51,120 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:51,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-11-18 20:11:51,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 20:11:51,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,127 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:51,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:51,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:51,206 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:51,206 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:51,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 115 states and 145 transitions. Complement of second has 7 states. [2022-11-18 20:11:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:51,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 20:11:51,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-18 20:11:51,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:51,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-11-18 20:11:51,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:51,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 8 letters. [2022-11-18 20:11:51,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:51,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 145 transitions. [2022-11-18 20:11:51,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-18 20:11:51,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 97 states and 125 transitions. [2022-11-18 20:11:51,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-18 20:11:51,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-18 20:11:51,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 125 transitions. [2022-11-18 20:11:51,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:51,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 125 transitions. [2022-11-18 20:11:51,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 125 transitions. [2022-11-18 20:11:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-11-18 20:11:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.302325581395349) internal successors, (112), 85 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-11-18 20:11:51,249 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-18 20:11:51,249 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-18 20:11:51,249 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:11:51,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 112 transitions. [2022-11-18 20:11:51,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-18 20:11:51,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:51,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:51,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:51,251 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:51,255 INFO L748 eck$LassoCheckResult]: Stem: 1341#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1342#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1347#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1370#L12 assume !(main_~i~0#1 >= 10); 1368#L12-2 assume !(main_~i~0#1 <= 0); 1367#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1365#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1362#L12 assume !(main_~i~0#1 >= 10); 1361#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1348#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1336#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1338#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1332#L12-2 [2022-11-18 20:11:51,255 INFO L750 eck$LassoCheckResult]: Loop: 1332#L12-2 assume !(main_~i~0#1 <= 0); 1333#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1351#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1416#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1332#L12-2 [2022-11-18 20:11:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 1 times [2022-11-18 20:11:51,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:51,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522665472] [2022-11-18 20:11:51,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:51,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:11:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:51,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522665472] [2022-11-18 20:11:51,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522665472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:51,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:51,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342530772] [2022-11-18 20:11:51,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:51,311 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:11:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-11-18 20:11:51,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:51,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515281844] [2022-11-18 20:11:51,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:51,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:51,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:51,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:51,368 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:51,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:51,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:51,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:51,369 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:51,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:51,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:51,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-11-18 20:11:51,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:51,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:51,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,379 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:51,455 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:51,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,459 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:51,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 20:11:51,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:51,491 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:51,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,501 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:51,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 20:11:51,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:51,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:51,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,536 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:51,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-18 20:11:51,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:11:51,563 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:11:51,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,572 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-18 20:11:51,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:51,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,590 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-18 20:11:51,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:51,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:51,720 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:51,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,724 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:51,725 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:51,725 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:51,725 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:51,725 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:51,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:51,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:51,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-11-18 20:11:51,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:51,725 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:51,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:51,789 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:51,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:51,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,791 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:51,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:51,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:51,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:51,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:51,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:51,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:51,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:51,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-18 20:11:51,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:51,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,828 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:51,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:51,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:51,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:51,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:51,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:11:51,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:11:51,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-18 20:11:51,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:11:51,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,883 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:51,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:51,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:51,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:51,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:51,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:51,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:51,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:51,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-18 20:11:51,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:51,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:51,918 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 20:11:51,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:51,923 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:51,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:51,927 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:51,927 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:11:51,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-18 20:11:51,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:51,930 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:51,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:51,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:52,009 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:52,009 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-18 20:11:52,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 188 states and 256 transitions. Complement of second has 7 states. [2022-11-18 20:11:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-18 20:11:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 20:11:52,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-18 20:11:52,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:52,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-18 20:11:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-18 20:11:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:52,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 256 transitions. [2022-11-18 20:11:52,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-18 20:11:52,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 140 states and 182 transitions. [2022-11-18 20:11:52,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-18 20:11:52,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2022-11-18 20:11:52,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 182 transitions. [2022-11-18 20:11:52,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:52,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-11-18 20:11:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 182 transitions. [2022-11-18 20:11:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 94. [2022-11-18 20:11:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 93 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-11-18 20:11:52,058 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-11-18 20:11:52,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:52,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:52,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:52,059 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:52,088 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-11-18 20:11:52,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 132 transitions. [2022-11-18 20:11:52,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2022-11-18 20:11:52,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 103 states and 130 transitions. [2022-11-18 20:11:52,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-18 20:11:52,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-18 20:11:52,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 130 transitions. [2022-11-18 20:11:52,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:52,091 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-18 20:11:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 130 transitions. [2022-11-18 20:11:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-11-18 20:11:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 93 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2022-11-18 20:11:52,104 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-11-18 20:11:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:11:52,108 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-11-18 20:11:52,108 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-18 20:11:52,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 121 transitions. [2022-11-18 20:11:52,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-18 20:11:52,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:52,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:52,110 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-11-18 20:11:52,110 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:11:52,110 INFO L748 eck$LassoCheckResult]: Stem: 1885#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1886#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1890#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1899#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1900#L12-2 assume !(main_~i~0#1 <= 0); 1921#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1920#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1919#L12 assume !(main_~i~0#1 >= 10); 1918#L12-2 assume !(main_~i~0#1 <= 0); 1917#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1916#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1915#L12 assume !(main_~i~0#1 >= 10); 1914#L12-2 assume !(main_~i~0#1 <= 0); 1913#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1912#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1911#L12 assume !(main_~i~0#1 >= 10); 1907#L12-2 assume !(main_~i~0#1 <= 0); 1910#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1909#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1906#L12 assume !(main_~i~0#1 >= 10); 1905#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1904#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1892#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1883#L12 assume !(main_~i~0#1 >= 10); 1962#L12-2 assume !(main_~i~0#1 <= 0); 1889#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1882#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1884#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1876#L12-2 [2022-11-18 20:11:52,110 INFO L750 eck$LassoCheckResult]: Loop: 1876#L12-2 assume !(main_~i~0#1 <= 0); 1877#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1896#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1956#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1876#L12-2 [2022-11-18 20:11:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 2 times [2022-11-18 20:11:52,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:52,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136535876] [2022-11-18 20:11:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:11:52,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136535876] [2022-11-18 20:11:52,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136535876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:52,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626635645] [2022-11-18 20:11:52,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:11:52,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:52,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:52,246 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-18 20:11:52,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:11:52,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:52,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:11:52,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:11:52,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626635645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:52,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:52,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-18 20:11:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550814838] [2022-11-18 20:11:52,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:52,400 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:11:52,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-11-18 20:11:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:52,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98494011] [2022-11-18 20:11:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:52,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:52,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:52,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:52,445 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:52,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:52,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:52,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:52,445 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:11:52,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:52,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:52,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-11-18 20:11:52,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:52,446 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:52,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:52,510 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:11:52,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:52,512 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:11:52,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:52,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-18 20:11:52,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:52,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:52,545 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:11:52,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:11:52,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-18 20:11:52,667 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:11:52,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:52,670 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:11:52,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:11:52,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:11:52,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:11:52,670 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:11:52,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,670 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:11:52,670 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:11:52,670 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-11-18 20:11:52,670 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:11:52,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:11:52,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,688 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,693 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:11:52,739 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:11:52,740 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:11:52,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:52,741 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-18 20:11:52,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:11:52,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:11:52,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:11:52,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:11:52,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:11:52,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:11:52,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:11:52,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:11:52,761 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:11:52,763 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:11:52,763 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 20:11:52,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:11:52,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:52,767 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-18 20:11:52,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:11:52,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:11:52,768 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:11:52,768 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:11:52,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-18 20:11:52,771 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:11:52,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:52,868 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:52,868 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:52,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:52,894 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 148 states and 200 transitions. Complement of second has 7 states. [2022-11-18 20:11:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 20:11:52,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-18 20:11:52,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:52,896 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:11:52,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:52,973 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:52,973 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:53,004 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 173 states and 212 transitions. Complement of second has 7 states. [2022-11-18 20:11:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-18 20:11:53,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-18 20:11:53,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:53,005 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:11:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:11:53,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:53,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:53,085 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:11:53,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:53,111 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 163 states and 221 transitions. Complement of second has 8 states. [2022-11-18 20:11:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:11:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:11:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-18 20:11:53,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-18 20:11:53,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:53,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-11-18 20:11:53,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:53,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-11-18 20:11:53,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:11:53,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 221 transitions. [2022-11-18 20:11:53,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-11-18 20:11:53,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 115 states and 147 transitions. [2022-11-18 20:11:53,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-18 20:11:53,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-18 20:11:53,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 147 transitions. [2022-11-18 20:11:53,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:53,116 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 147 transitions. [2022-11-18 20:11:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 147 transitions. [2022-11-18 20:11:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 61. [2022-11-18 20:11:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.278688524590164) internal successors, (78), 60 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-11-18 20:11:53,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-11-18 20:11:53,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:11:53,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:11:53,120 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:53,234 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2022-11-18 20:11:53,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 238 transitions. [2022-11-18 20:11:53,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-11-18 20:11:53,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 182 states and 225 transitions. [2022-11-18 20:11:53,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2022-11-18 20:11:53,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-11-18 20:11:53,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 225 transitions. [2022-11-18 20:11:53,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:53,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 225 transitions. [2022-11-18 20:11:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 225 transitions. [2022-11-18 20:11:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 168. [2022-11-18 20:11:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.255952380952381) internal successors, (211), 167 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2022-11-18 20:11:53,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-11-18 20:11:53,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:11:53,251 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-11-18 20:11:53,251 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-18 20:11:53,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 211 transitions. [2022-11-18 20:11:53,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-18 20:11:53,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:53,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:53,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:11:53,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-18 20:11:53,259 INFO L748 eck$LassoCheckResult]: Stem: 3216#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3220#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3224#L12 assume !(main_~i~0#1 >= 10); 3229#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3227#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3212#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3213#L12 assume !(main_~i~0#1 >= 10); 3320#L12-2 assume !(main_~i~0#1 <= 0); 3321#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3316#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3274#L12 [2022-11-18 20:11:53,260 INFO L750 eck$LassoCheckResult]: Loop: 3274#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 3273#L12-2 assume !(main_~i~0#1 <= 0); 3211#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3214#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3215#L12 assume !(main_~i~0#1 >= 10); 3223#L12-2 assume !(main_~i~0#1 <= 0); 3315#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3314#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3313#L12 assume !(main_~i~0#1 >= 10); 3312#L12-2 assume !(main_~i~0#1 <= 0); 3311#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3310#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3309#L12 assume !(main_~i~0#1 >= 10); 3308#L12-2 assume !(main_~i~0#1 <= 0); 3307#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3306#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3305#L12 assume !(main_~i~0#1 >= 10); 3304#L12-2 assume !(main_~i~0#1 <= 0); 3303#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3302#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3301#L12 assume !(main_~i~0#1 >= 10); 3300#L12-2 assume !(main_~i~0#1 <= 0); 3299#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3298#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3297#L12 assume !(main_~i~0#1 >= 10); 3296#L12-2 assume !(main_~i~0#1 <= 0); 3295#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3294#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3293#L12 assume !(main_~i~0#1 >= 10); 3292#L12-2 assume !(main_~i~0#1 <= 0); 3291#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3290#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3289#L12 assume !(main_~i~0#1 >= 10); 3288#L12-2 assume !(main_~i~0#1 <= 0); 3287#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3286#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3285#L12 assume !(main_~i~0#1 >= 10); 3282#L12-2 assume !(main_~i~0#1 <= 0); 3284#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3283#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3281#L12 assume !(main_~i~0#1 >= 10); 3278#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3276#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3277#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3279#L12 assume !(main_~i~0#1 >= 10); 3280#L12-2 assume !(main_~i~0#1 <= 0); 3375#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3374#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3347#L12 assume !(main_~i~0#1 >= 10); 3208#L12-2 assume !(main_~i~0#1 <= 0); 3209#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3226#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3348#L12 assume !(main_~i~0#1 >= 10); 3373#L12-2 assume !(main_~i~0#1 <= 0); 3372#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3371#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3370#L12 assume !(main_~i~0#1 >= 10); 3369#L12-2 assume !(main_~i~0#1 <= 0); 3368#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3367#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3366#L12 assume !(main_~i~0#1 >= 10); 3365#L12-2 assume !(main_~i~0#1 <= 0); 3364#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3363#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3362#L12 assume !(main_~i~0#1 >= 10); 3361#L12-2 assume !(main_~i~0#1 <= 0); 3360#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3359#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3358#L12 assume !(main_~i~0#1 >= 10); 3357#L12-2 assume !(main_~i~0#1 <= 0); 3356#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3355#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3354#L12 assume !(main_~i~0#1 >= 10); 3353#L12-2 assume !(main_~i~0#1 <= 0); 3352#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3351#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3350#L12 assume !(main_~i~0#1 >= 10); 3222#L12-2 assume !(main_~i~0#1 <= 0); 3349#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3275#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3274#L12 [2022-11-18 20:11:53,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 474307092, now seen corresponding path program 1 times [2022-11-18 20:11:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521379291] [2022-11-18 20:11:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:53,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:53,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 1 times [2022-11-18 20:11:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:53,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785671929] [2022-11-18 20:11:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:53,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:53,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:53,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash -68907892, now seen corresponding path program 3 times [2022-11-18 20:11:53,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:53,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407029751] [2022-11-18 20:11:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:53,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:53,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407029751] [2022-11-18 20:11:53,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407029751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:53,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947362497] [2022-11-18 20:11:53,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:11:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:53,444 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:53,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-11-18 20:11:53,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:11:53,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:53,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:11:53,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:53,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:53,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947362497] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:53,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:53,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-11-18 20:11:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49518341] [2022-11-18 20:11:53,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:54,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:11:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:11:54,122 INFO L87 Difference]: Start difference. First operand 168 states and 211 transitions. cyclomatic complexity: 46 Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:54,178 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2022-11-18 20:11:54,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 197 transitions. [2022-11-18 20:11:54,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-18 20:11:54,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 175 states and 193 transitions. [2022-11-18 20:11:54,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-11-18 20:11:54,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-11-18 20:11:54,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 193 transitions. [2022-11-18 20:11:54,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:54,181 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-18 20:11:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 193 transitions. [2022-11-18 20:11:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 168. [2022-11-18 20:11:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.1011904761904763) internal successors, (185), 167 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 185 transitions. [2022-11-18 20:11:54,184 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-11-18 20:11:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:11:54,185 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-11-18 20:11:54,185 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-18 20:11:54,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 185 transitions. [2022-11-18 20:11:54,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-18 20:11:54,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:54,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:54,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1] [2022-11-18 20:11:54,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-18 20:11:54,191 INFO L748 eck$LassoCheckResult]: Stem: 4116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4121#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4133#L12 assume !(main_~i~0#1 >= 10); 4129#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4126#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4127#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4262#L12 assume !(main_~i~0#1 >= 10); 4261#L12-2 assume !(main_~i~0#1 <= 0); 4124#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4125#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4260#L12 assume !(main_~i~0#1 >= 10); 4258#L12-2 assume !(main_~i~0#1 <= 0); 4259#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4253#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4122#L12 assume !(main_~i~0#1 >= 10); 4108#L12-2 assume !(main_~i~0#1 <= 0); 4109#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4257#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 assume !(main_~i~0#1 >= 10); 4255#L12-2 assume !(main_~i~0#1 <= 0); 4254#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4112#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4113#L12 assume !(main_~i~0#1 >= 10); 4275#L12-2 assume !(main_~i~0#1 <= 0); 4274#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4263#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4176#L12 [2022-11-18 20:11:54,193 INFO L750 eck$LassoCheckResult]: Loop: 4176#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 4175#L12-2 assume !(main_~i~0#1 <= 0); 4120#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4114#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4115#L12 assume !(main_~i~0#1 >= 10); 4110#L12-2 assume !(main_~i~0#1 <= 0); 4111#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4252#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4251#L12 assume !(main_~i~0#1 >= 10); 4250#L12-2 assume !(main_~i~0#1 <= 0); 4249#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4248#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4247#L12 assume !(main_~i~0#1 >= 10); 4246#L12-2 assume !(main_~i~0#1 <= 0); 4245#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4244#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4243#L12 assume !(main_~i~0#1 >= 10); 4242#L12-2 assume !(main_~i~0#1 <= 0); 4241#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4239#L12 assume !(main_~i~0#1 >= 10); 4238#L12-2 assume !(main_~i~0#1 <= 0); 4237#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4236#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4235#L12 assume !(main_~i~0#1 >= 10); 4234#L12-2 assume !(main_~i~0#1 <= 0); 4233#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4232#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4231#L12 assume !(main_~i~0#1 >= 10); 4230#L12-2 assume !(main_~i~0#1 <= 0); 4229#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4228#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4227#L12 assume !(main_~i~0#1 >= 10); 4226#L12-2 assume !(main_~i~0#1 <= 0); 4225#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4224#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4223#L12 assume !(main_~i~0#1 >= 10); 4220#L12-2 assume !(main_~i~0#1 <= 0); 4222#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4221#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4219#L12 assume !(main_~i~0#1 >= 10); 4218#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4215#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4217#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4216#L12 assume !(main_~i~0#1 >= 10); 4214#L12-2 assume !(main_~i~0#1 <= 0); 4213#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4212#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4211#L12 assume !(main_~i~0#1 >= 10); 4210#L12-2 assume !(main_~i~0#1 <= 0); 4209#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4207#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4205#L12 assume !(main_~i~0#1 >= 10); 4203#L12-2 assume !(main_~i~0#1 <= 0); 4201#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4199#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4197#L12 assume !(main_~i~0#1 >= 10); 4195#L12-2 assume !(main_~i~0#1 <= 0); 4193#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4191#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4189#L12 assume !(main_~i~0#1 >= 10); 4187#L12-2 assume !(main_~i~0#1 <= 0); 4186#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4177#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4178#L12 assume !(main_~i~0#1 >= 10); 4188#L12-2 assume !(main_~i~0#1 <= 0); 4208#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4206#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4204#L12 assume !(main_~i~0#1 >= 10); 4202#L12-2 assume !(main_~i~0#1 <= 0); 4200#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4198#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4196#L12 assume !(main_~i~0#1 >= 10); 4194#L12-2 assume !(main_~i~0#1 <= 0); 4192#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4190#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4183#L12 assume !(main_~i~0#1 >= 10); 4184#L12-2 assume !(main_~i~0#1 <= 0); 4264#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4185#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4176#L12 [2022-11-18 20:11:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1514411024, now seen corresponding path program 2 times [2022-11-18 20:11:54,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:54,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507436212] [2022-11-18 20:11:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:54,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:54,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:54,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:54,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 2 times [2022-11-18 20:11:54,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:54,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834238734] [2022-11-18 20:11:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:54,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:54,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -883489176, now seen corresponding path program 4 times [2022-11-18 20:11:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:54,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170797567] [2022-11-18 20:11:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:54,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170797567] [2022-11-18 20:11:54,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170797567] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068188519] [2022-11-18 20:11:54,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:11:54,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:54,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:54,479 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:54,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-11-18 20:11:54,544 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:11:54,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:54,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:11:54,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:54,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-18 20:11:54,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068188519] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:54,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:54,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-11-18 20:11:54,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894350475] [2022-11-18 20:11:54,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:55,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:11:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:11:55,323 INFO L87 Difference]: Start difference. First operand 168 states and 185 transitions. cyclomatic complexity: 21 Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:55,441 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-11-18 20:11:55,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 229 transitions. [2022-11-18 20:11:55,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-18 20:11:55,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 208 states and 223 transitions. [2022-11-18 20:11:55,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-11-18 20:11:55,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2022-11-18 20:11:55,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 223 transitions. [2022-11-18 20:11:55,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:11:55,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 208 states and 223 transitions. [2022-11-18 20:11:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 223 transitions. [2022-11-18 20:11:55,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 167. [2022-11-18 20:11:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.089820359281437) internal successors, (182), 166 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2022-11-18 20:11:55,449 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-11-18 20:11:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:11:55,449 INFO L428 stractBuchiCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-11-18 20:11:55,450 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-11-18 20:11:55,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 182 transitions. [2022-11-18 20:11:55,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-18 20:11:55,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:11:55,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:11:55,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:11:55,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-18 20:11:55,452 INFO L748 eck$LassoCheckResult]: Stem: 5151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5153#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5166#L12 assume !(main_~i~0#1 >= 10); 5164#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 5162#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5161#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5204#L12 assume !(main_~i~0#1 >= 10); 5203#L12-2 assume !(main_~i~0#1 <= 0); 5202#L15-1 [2022-11-18 20:11:55,452 INFO L750 eck$LassoCheckResult]: Loop: 5202#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5201#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5200#L12 assume !(main_~i~0#1 >= 10); 5199#L12-2 assume !(main_~i~0#1 <= 0); 5198#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5197#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5196#L12 assume !(main_~i~0#1 >= 10); 5195#L12-2 assume !(main_~i~0#1 <= 0); 5194#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5193#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5192#L12 assume !(main_~i~0#1 >= 10); 5191#L12-2 assume !(main_~i~0#1 <= 0); 5190#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5189#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5188#L12 assume !(main_~i~0#1 >= 10); 5187#L12-2 assume !(main_~i~0#1 <= 0); 5186#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5185#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5184#L12 assume !(main_~i~0#1 >= 10); 5183#L12-2 assume !(main_~i~0#1 <= 0); 5182#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5181#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5180#L12 assume !(main_~i~0#1 >= 10); 5179#L12-2 assume !(main_~i~0#1 <= 0); 5178#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5177#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5176#L12 assume !(main_~i~0#1 >= 10); 5175#L12-2 assume !(main_~i~0#1 <= 0); 5174#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5173#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5172#L12 assume !(main_~i~0#1 >= 10); 5171#L12-2 assume !(main_~i~0#1 <= 0); 5170#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5169#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5168#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 5165#L12-2 assume !(main_~i~0#1 <= 0); 5146#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5149#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5150#L12 assume !(main_~i~0#1 >= 10); 5245#L12-2 assume !(main_~i~0#1 <= 0); 5244#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5243#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5242#L12 assume !(main_~i~0#1 >= 10); 5241#L12-2 assume !(main_~i~0#1 <= 0); 5240#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5239#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5238#L12 assume !(main_~i~0#1 >= 10); 5237#L12-2 assume !(main_~i~0#1 <= 0); 5236#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5235#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5234#L12 assume !(main_~i~0#1 >= 10); 5233#L12-2 assume !(main_~i~0#1 <= 0); 5232#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5231#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5230#L12 assume !(main_~i~0#1 >= 10); 5229#L12-2 assume !(main_~i~0#1 <= 0); 5228#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5227#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5226#L12 assume !(main_~i~0#1 >= 10); 5225#L12-2 assume !(main_~i~0#1 <= 0); 5224#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5223#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5222#L12 assume !(main_~i~0#1 >= 10); 5221#L12-2 assume !(main_~i~0#1 <= 0); 5220#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5219#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5218#L12 assume !(main_~i~0#1 >= 10); 5217#L12-2 assume !(main_~i~0#1 <= 0); 5216#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5215#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5214#L12 assume !(main_~i~0#1 >= 10); 5213#L12-2 assume !(main_~i~0#1 <= 0); 5212#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5211#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5210#L12 assume !(main_~i~0#1 >= 10); 5208#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 5207#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5205#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5206#L12 assume !(main_~i~0#1 >= 10); 5209#L12-2 assume !(main_~i~0#1 <= 0); 5202#L15-1 [2022-11-18 20:11:55,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:55,453 INFO L85 PathProgramCache]: Analyzing trace with hash 644068259, now seen corresponding path program 3 times [2022-11-18 20:11:55,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:55,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968331690] [2022-11-18 20:11:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:55,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1888138361, now seen corresponding path program 3 times [2022-11-18 20:11:55,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:55,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781819412] [2022-11-18 20:11:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:55,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1126640613, now seen corresponding path program 5 times [2022-11-18 20:11:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:55,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185430004] [2022-11-18 20:11:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:55,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:55,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:56,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:56,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:11:56 BoogieIcfgContainer [2022-11-18 20:11:56,184 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:11:56,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:11:56,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:11:56,185 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:11:56,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:46" (3/4) ... [2022-11-18 20:11:56,188 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 20:11:56,229 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:11:56,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:11:56,229 INFO L158 Benchmark]: Toolchain (without parser) took 10122.56ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 82.7MB in the beginning and 76.1MB in the end (delta: 6.6MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,230 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 90.5MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:11:56,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.67ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 94.1MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.49ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:11:56,231 INFO L158 Benchmark]: Boogie Preprocessor took 17.16ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 91.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,231 INFO L158 Benchmark]: RCFGBuilder took 269.01ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 83.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,232 INFO L158 Benchmark]: BuchiAutomizer took 9519.30ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 83.2MB in the beginning and 79.3MB in the end (delta: 4.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,232 INFO L158 Benchmark]: Witness Printer took 44.42ms. Allocated memory is still 176.2MB. Free memory was 79.3MB in the beginning and 76.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:11:56,234 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 117.4MB. Free memory was 90.5MB in the beginning and 90.5MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.67ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 94.1MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.49ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.16ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 91.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 269.01ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 83.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9519.30ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 83.2MB in the beginning and 79.3MB in the end (delta: 4.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Witness Printer took 44.42ms. Allocated memory is still 176.2MB. Free memory was 79.3MB in the beginning and 76.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 15 terminating modules (8 trivial, 6 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 167 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.4s and 12 iterations. TraceHistogramMax:20. Analysis of lassos took 7.5s. Construction of modules took 0.3s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 15. Automata minimization 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 245 StatesRemovedByMinimization, 15 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 [6, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 538 IncrementalHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 135 mSDtfsCounter, 538 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc2 concLT1 SILN0 SILU0 SILI2 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf110 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i >= 10) VAL [i=0, up=0] [L15] COND TRUE i <= 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up >= 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i >= 10) VAL [i=1, up=1] [L15] COND FALSE !(i <= 0) VAL [i=1, up=1] Loop: [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i >= 10) VAL [i=0, up=0] [L15] COND TRUE i <= 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up >= 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i >= 10) VAL [i=1, up=1] [L15] COND FALSE !(i <= 0) VAL [i=1, up=1] Loop: [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 20:11:56,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:56,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-11-18 20:11:56,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2022-11-18 20:11:56,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-18 20:11:57,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154500ad-c9fd-4839-88c1-10d261acea79/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)