./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/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_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/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 32bit --witnessprinter.graph.data.programhash 2c19e6821eec12ef8284f33ab77e3183032aa426313dfebebf501fe3b6a052c3 --- 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 18:39:46,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:39:46,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:39:46,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:39:46,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:39:46,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:39:46,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:39:46,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:39:46,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:39:46,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:39:46,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:39:46,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:39:46,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:39:46,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:39:46,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:39:46,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:39:46,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:39:46,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:39:46,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:39:46,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:39:46,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:39:46,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:39:46,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:39:46,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:39:46,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:39:46,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:39:46,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:39:46,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:39:46,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:39:46,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:39:46,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:39:46,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:39:46,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:39:46,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:39:46,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:39:46,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:39:46,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:39:46,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:39:46,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:39:46,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:39:46,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:39:46,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 18:39:46,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:39:46,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:39:46,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:39:46,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:39:46,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:39:46,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:39:46,653 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:39:46,654 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:39:46,654 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:39:46,654 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:39:46,654 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:39:46,655 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:39:46,655 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:39:46,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:39:46,655 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:39:46,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:39:46,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:39:46,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:39:46,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:39:46,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:39:46,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:39:46,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:39:46,657 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:39:46,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:39:46,658 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:39:46,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:39:46,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:39:46,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:39:46,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:39:46,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:39:46,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:39:46,663 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:39:46,663 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_e1b286e2-0559-484d-b800-a451b3f69baa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c19e6821eec12ef8284f33ab77e3183032aa426313dfebebf501fe3b6a052c3 [2022-11-18 18:39:46,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:39:46,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:39:46,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:39:46,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:39:46,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:39:46,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2022-11-18 18:39:47,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/data/95db6dd9e/30096cfa299e485788960d0a74cfb9d4/FLAG0f4ccaed1 [2022-11-18 18:39:47,511 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:39:47,511 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2022-11-18 18:39:47,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/data/95db6dd9e/30096cfa299e485788960d0a74cfb9d4/FLAG0f4ccaed1 [2022-11-18 18:39:47,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/data/95db6dd9e/30096cfa299e485788960d0a74cfb9d4 [2022-11-18 18:39:47,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:39:47,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:39:47,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:47,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:39:47,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:39:47,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:47" (1/1) ... [2022-11-18 18:39:47,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fd271e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:47, skipping insertion in model container [2022-11-18 18:39:47,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:47" (1/1) ... [2022-11-18 18:39:47,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:39:47,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:48,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:48,152 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:39:48,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:48,174 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:39:48,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48 WrapperNode [2022-11-18 18:39:48,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:48,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:48,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:39:48,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:39:48,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,203 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2022-11-18 18:39:48,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:48,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:39:48,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:39:48,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:39:48,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:39:48,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:39:48,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:39:48,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:39:48,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (1/1) ... [2022-11-18 18:39:48,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:48,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:48,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:48,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:39:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:39:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:39:48,354 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:39:48,357 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:39:48,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:48,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:48,467 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:39:48,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:48 BoogieIcfgContainer [2022-11-18 18:39:48,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:48,470 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:39:48,470 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:39:48,487 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:39:48,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:39:48,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:39:47" (1/3) ... [2022-11-18 18:39:48,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ce26ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:39:48, skipping insertion in model container [2022-11-18 18:39:48,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:39:48,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:48" (2/3) ... [2022-11-18 18:39:48,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ce26ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:39:48, skipping insertion in model container [2022-11-18 18:39:48,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:39:48,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:48" (3/3) ... [2022-11-18 18:39:48,495 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-t.c [2022-11-18 18:39:48,555 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:39:48,555 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:39:48,555 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:39:48,555 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:39:48,556 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:39:48,556 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:39:48,556 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:39:48,556 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:39:48,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 18:39:48,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-11-18 18:39:48,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:39:48,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:39:48,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 18:39:48,582 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 18:39:48,582 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:39:48,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 18:39:48,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-11-18 18:39:48,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:39:48,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:39:48,584 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 18:39:48,584 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 18:39:48,593 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L25true assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 2#L32-2true [2022-11-18 18:39:48,593 INFO L750 eck$LassoCheckResult]: Loop: 2#L32-2true assume !!(main_~q~0#1 <= main_~n~0#1);main_~q~0#1 := 4 * main_~q~0#1; 2#L32-2true [2022-11-18 18:39:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-18 18:39:48,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:48,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161075578] [2022-11-18 18:39:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-11-18 18:39:48,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:48,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70897732] [2022-11-18 18:39:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:48,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:48,735 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-11-18 18:39:48,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:48,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364305953] [2022-11-18 18:39:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:48,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:48,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:48,857 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:39:48,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:39:48,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:39:48,858 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:39:48,858 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:39:48,858 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:48,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:39:48,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:39:48,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2022-11-18 18:39:48,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:39:48,859 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:39:48,900 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 18:39:48,924 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 18:39:48,928 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 18:39:48,959 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 18:39:48,964 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 18:39:49,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:39:49,117 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:39:49,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:49,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:49,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:49,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:39:49,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:39:49,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 18:39:49,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:39:49,174 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:39:49,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:49,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:49,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:49,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:49,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:39:49,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:39:49,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 18:39:49,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:39:49,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:39:49,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:49,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:49,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:49,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:39:49,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:39:49,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 18:39:49,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:49,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:39:49,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:49,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:49,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:39:49,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:39:49,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 18:40:01,440 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-18 18:40:01,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-18 18:40:01,459 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:40:01,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:40:01,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:40:01,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:40:01,460 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:40:01,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:40:01,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:40:01,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2022-11-18 18:40:01,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:40:01,460 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:40:01,463 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 18:40:01,476 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 18:40:01,483 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 18:40:01,490 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 18:40:01,513 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 18:40:01,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:40:01,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:40:01,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:01,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:01,624 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 18:40:01,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 18:40:01,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:01,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:01,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:01,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:40:01,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:40:01,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:40:01,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:01,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:01,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:01,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:01,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:01,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 18:40:01,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 18:40:01,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:01,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:01,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:01,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:40:01,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:40:01,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:40:01,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:01,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:01,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:01,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:01,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:01,723 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 18:40:01,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 18:40:01,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:01,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:01,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:40:01,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:40:01,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 18:40:01,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 18:40:01,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:01,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:01,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:01,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:01,793 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 18:40:01,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 18:40:01,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:01,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:01,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:40:01,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:40:01,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 18:40:01,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 18:40:01,870 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:40:01,885 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 18:40:01,885 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-18 18:40:01,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:01,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:01,902 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:40:01,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 18:40:01,929 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-11-18 18:40:01,929 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:40:01,930 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = -1*ULTIMATE.start_main_~q~0#1 + 1073741824 Supporting invariants [3*ULTIMATE.start_main_~q~0#1 - 2 >= 0, -1*ULTIMATE.start_main_~n~0#1 + 1073741823 >= 0] [2022-11-18 18:40:01,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:01,951 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-11-18 18:40:02,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:02,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:40:02,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:02,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:40:02,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:02,033 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 18:40:02,071 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 18:40:02,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:02,146 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 40 transitions. Complement of second has 6 states. [2022-11-18 18:40:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:40:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-18 18:40:02,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-18 18:40:02,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:40:02,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-18 18:40:02,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:40:02,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-18 18:40:02,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:40:02,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2022-11-18 18:40:02,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:40:02,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 8 states and 11 transitions. [2022-11-18 18:40:02,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-18 18:40:02,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-18 18:40:02,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-18 18:40:02,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:02,169 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-18 18:40:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-18 18:40:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-11-18 18:40:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 18:40:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-11-18 18:40:02,199 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-18 18:40:02,200 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-18 18:40:02,200 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:40:02,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-11-18 18:40:02,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:40:02,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:40:02,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:40:02,202 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 18:40:02,203 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:40:02,203 INFO L748 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 94#L25 assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 88#L32-2 assume !(main_~q~0#1 <= main_~n~0#1); 90#L53-2 [2022-11-18 18:40:02,203 INFO L750 eck$LassoCheckResult]: Loop: 90#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 93#L53 assume !(main_~r~0#1 >= main_~h~0#1); 90#L53-2 [2022-11-18 18:40:02,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 925674, now seen corresponding path program 1 times [2022-11-18 18:40:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:02,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932861491] [2022-11-18 18:40:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:02,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:40:02,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:40:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:40:02,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:40:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 1 times [2022-11-18 18:40:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:02,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854215493] [2022-11-18 18:40:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:40:02,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:40:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:40:02,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:40:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 889573583, now seen corresponding path program 1 times [2022-11-18 18:40:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:02,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247030739] [2022-11-18 18:40:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:02,408 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 18:40:02,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:02,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247030739] [2022-11-18 18:40:02,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247030739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:02,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:02,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:40:02,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067896897] [2022-11-18 18:40:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:02,662 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:40:02,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:40:02,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:40:02,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:40:02,663 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:40:02,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:02,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:40:02,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:40:02,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2022-11-18 18:40:02,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:40:02,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:40:02,666 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 18:40:02,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:03,162 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-18 18:40:04,209 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:40:04,218 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:40:04,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:04,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:04,226 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:04,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:40:04,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:40:04,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 18:40:04,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:04,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:04,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:04,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:04,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:40:04,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:40:04,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 18:40:15,006 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:40:15,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:15,016 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:40:15,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:40:15,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:40:15,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:40:15,016 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:40:15,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:15,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:40:15,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:40:15,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2022-11-18 18:40:15,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:40:15,017 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:40:15,020 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 18:40:15,434 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-18 18:40:16,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:40:16,388 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:40:16,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:16,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:16,393 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:16,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 18:40:16,407 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 18:40:16,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:16,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:16,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:16,423 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:16,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:40:16,451 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-18 18:40:16,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:16,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:16,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:16,495 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 18:40:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:16,496 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:16,503 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 18:40:16,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 18:40:16,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:16,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:16,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:16,519 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:16,520 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 18:40:16,574 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-11-18 18:40:16,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:16,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:16,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:16,621 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-11-18 18:40:16,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:16,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:16,623 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:16,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 18:40:16,626 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 18:40:16,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:16,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:16,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:16,639 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:16,639 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:40:16,695 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:40:16,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:16,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:16,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:16,773 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-11-18 18:40:16,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:16,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:16,775 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:16,788 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 18:40:16,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 18:40:16,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:40:16,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:16,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:16,804 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:16,805 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-11-18 18:40:16,876 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-11-18 18:40:16,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:16,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:16,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-18 18:40:16,967 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-11-18 18:40:16,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:16,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:16,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:16,975 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 18:40:16,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 18:40:16,987 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:40:16,988 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-11-18 18:40:16,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:16,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:16,988 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:16,988 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 18:40:17,041 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-11-18 18:40:17,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:17,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:17,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:17,167 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-11-18 18:40:17,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:17,169 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:17,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 18:40:17,171 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 18:40:17,190 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:40:17,191 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-11-18 18:40:17,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:17,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:17,191 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:17,191 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:40:17,257 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:40:17,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:17,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:17,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-11-18 18:40:17,907 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-11-18 18:40:17,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:17,909 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:17,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 18:40:17,912 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 18:40:17,924 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:40:17,924 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-11-18 18:40:17,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:17,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:17,925 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:17,925 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-11-18 18:40:18,004 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-11-18 18:40:18,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:20,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:40:20,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:20,515 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-11-18 18:40:20,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:20,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:20,517 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:20,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 18:40:20,525 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 18:40:20,537 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:40:20,537 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-11-18 18:40:20,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:40:20,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:40:20,538 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:40:20,538 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:40:20,595 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:40:20,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:40:20,818 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:40:21,039 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-18 18:40:21,039 INFO L444 ModelExtractionUtils]: 2 out of 12 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 18:40:21,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:40:21,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:40:21,040 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:40:21,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 18:40:21,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:40:21,046 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:40:21,046 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:40:21,046 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-lexicographic ranking function: f(ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~r~0#1) = Supporting invariants [] [2022-11-18 18:40:21,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 18:40:21,056 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:40:21,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:40:21,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,126 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:40:21,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:40:21,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-11-18 18:41:39,595 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 18:41:39,596 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 18:41:39,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:39,634 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2022-11-18 18:41:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:41:39,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-18 18:41:39,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 18:41:39,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:41:39,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 18:41:39,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:41:39,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-18 18:41:39,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:41:39,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2022-11-18 18:41:39,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:41:39,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2022-11-18 18:41:39,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-18 18:41:39,638 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 18:41:39,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2022-11-18 18:41:39,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 18:41:39,639 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-11-18 18:41:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2022-11-18 18:41:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-18 18:41:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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 18:41:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2022-11-18 18:41:39,641 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-11-18 18:41:39,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:41:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:41:39,645 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:39,680 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2022-11-18 18:41:39,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2022-11-18 18:41:39,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:41:39,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2022-11-18 18:41:39,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 18:41:39,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 18:41:39,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-11-18 18:41:39,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:39,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-18 18:41:39,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-11-18 18:41:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-18 18:41:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 18:41:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-11-18 18:41:39,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-18 18:41:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:41:39,696 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-18 18:41:39,696 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 18:41:39,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-11-18 18:41:39,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:41:39,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:41:39,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:41:39,701 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:41:39,701 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:41:39,702 INFO L748 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 177#L25 assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 170#L32-2 assume !(main_~q~0#1 <= main_~n~0#1); 172#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 178#L53 assume main_~r~0#1 >= main_~h~0#1;main_~p~0#1 := main_~p~0#1 + main_~q~0#1;main_~r~0#1 := main_~r~0#1 - main_~h~0#1; 175#L53-2 [2022-11-18 18:41:39,702 INFO L750 eck$LassoCheckResult]: Loop: 175#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 176#L53 assume !(main_~r~0#1 >= main_~h~0#1); 175#L53-2 [2022-11-18 18:41:39,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:39,720 INFO L85 PathProgramCache]: Analyzing trace with hash 889573581, now seen corresponding path program 1 times [2022-11-18 18:41:39,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:39,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489247284] [2022-11-18 18:41:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:39,834 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 18:41:39,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489247284] [2022-11-18 18:41:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489247284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:39,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:39,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:41:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964188849] [2022-11-18 18:41:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:39,835 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 18:41:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 2 times [2022-11-18 18:41:39,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:39,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551407908] [2022-11-18 18:41:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:39,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:41:39,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:41:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:41:39,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:41:40,033 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:41:40,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:41:40,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:41:40,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:41:40,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:41:40,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:40,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:41:40,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:41:40,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2022-11-18 18:41:40,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:41:40,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:41:40,036 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 18:41:40,418 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-18 18:41:41,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:41:41,333 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:41:41,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:41,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:41,340 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:41,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 18:41:41,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:41:41,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:41:41,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-11-18 18:41:41,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:41,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:41,557 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:41,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 18:41:41,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:41:41,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:41:47,751 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:41:47,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:47,760 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:41:47,760 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:41:47,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:41:47,760 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:41:47,760 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:41:47,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:47,760 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:41:47,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:41:47,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2022-11-18 18:41:47,761 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:41:47,761 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:41:47,762 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 18:41:48,200 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-18 18:41:49,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:41:49,203 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:41:49,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,208 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,215 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 18:41:49,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 18:41:49,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:41:49,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,230 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:41:49,257 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-18 18:41:49,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:49,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:49,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:49,308 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 18:41:49,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,310 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,320 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 18:41:49,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 18:41:49,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:41:49,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,336 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,336 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 18:41:49,366 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-11-18 18:41:49,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:49,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:49,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:49,421 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-11-18 18:41:49,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,423 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,430 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 18:41:49,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 18:41:49,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:41:49,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,447 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,447 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:41:49,490 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:41:49,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:49,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:49,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:49,569 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-11-18 18:41:49,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,570 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 18:41:49,589 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 18:41:49,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:41:49,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,608 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,608 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-11-18 18:41:49,668 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-11-18 18:41:49,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:49,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:49,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:49,755 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-11-18 18:41:49,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,757 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 18:41:49,761 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 18:41:49,774 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:41:49,775 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-11-18 18:41:49,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,775 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,775 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 18:41:49,810 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-11-18 18:41:49,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:49,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:49,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:49,924 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-11-18 18:41:49,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:49,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:49,926 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:49,932 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 18:41:49,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 18:41:49,948 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:41:49,948 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-11-18 18:41:49,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:49,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:49,949 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:49,949 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:41:50,008 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:41:50,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:50,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:50,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 18:41:50,205 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-11-18 18:41:50,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:50,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:50,206 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:50,211 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 18:41:50,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 18:41:50,227 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:41:50,227 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-11-18 18:41:50,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:50,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:50,227 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:50,228 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-11-18 18:41:50,302 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-11-18 18:41:50,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:50,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:41:50,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-18 18:41:50,714 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-11-18 18:41:50,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:50,715 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:50,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 18:41:50,719 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 18:41:50,732 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-11-18 18:41:50,733 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-11-18 18:41:50,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:41:50,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:41:50,733 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-11-18 18:41:50,733 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 18:41:50,773 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-18 18:41:50,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:41:50,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:41:51,163 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-18 18:41:51,163 INFO L444 ModelExtractionUtils]: 2 out of 12 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 18:41:51,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:41:51,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:51,166 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:51,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 18:41:51,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:41:51,168 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:41:51,168 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:41:51,169 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-lexicographic ranking function: f(ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~r~0#1, ULTIMATE.start_main_~q~0#1) = Supporting invariants [] [2022-11-18 18:41:51,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-18 18:41:51,175 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:41:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:51,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:41:51,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:51,223 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:41:51,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:51,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1b286e2-0559-484d-b800-a451b3f69baa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 18:46:29,623 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 41 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-18 18:47:08,250 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 34 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)