./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 14:05:00,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:05:00,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:05:00,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:05:00,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:05:00,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:05:00,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:05:00,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:05:00,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:05:00,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:05:00,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:05:00,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:05:00,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:05:00,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:05:00,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:05:00,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:05:00,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:05:00,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:05:00,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:05:00,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:05:00,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:05:00,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:05:00,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:05:00,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:05:00,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:05:00,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:05:00,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:05:00,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:05:00,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:05:00,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:05:00,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:05:00,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:05:00,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:05:00,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:05:00,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:05:00,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:05:00,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:05:00,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:05:00,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:05:00,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:05:00,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:05:00,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 14:05:00,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:05:00,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:05:00,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:05:00,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:05:00,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:05:00,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:05:00,201 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:05:00,201 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:05:00,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:05:00,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:05:00,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:05:00,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:05:00,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:05:00,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:05:00,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:05:00,205 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:05:00,205 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_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c19e6821eec12ef8284f33ab77e3183032aa426313dfebebf501fe3b6a052c3 [2022-12-13 14:05:00,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:05:00,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:05:00,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:05:00,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:05:00,432 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:05:00,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2022-12-13 14:05:03,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:05:03,292 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:05:03,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2022-12-13 14:05:03,296 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/data/408bc8b2e/56c20b71ac844306baa0a9e4b0cd9f1e/FLAG70c85b742 [2022-12-13 14:05:03,309 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/data/408bc8b2e/56c20b71ac844306baa0a9e4b0cd9f1e [2022-12-13 14:05:03,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:05:03,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:05:03,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:05:03,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:05:03,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:05:03,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a36495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03, skipping insertion in model container [2022-12-13 14:05:03,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:05:03,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:05:03,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:05:03,494 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:05:03,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:05:03,520 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:05:03,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03 WrapperNode [2022-12-13 14:05:03,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:05:03,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:05:03,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:05:03,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:05:03,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,551 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2022-12-13 14:05:03,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:05:03,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:05:03,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:05:03,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:05:03,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:05:03,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:05:03,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:05:03,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:05:03,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (1/1) ... [2022-12-13 14:05:03,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:03,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:03,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:03,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:05:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:05:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:05:03,685 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:05:03,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:05:03,765 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:05:03,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:05:03,772 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:05:03,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:05:03 BoogieIcfgContainer [2022-12-13 14:05:03,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:05:03,774 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:05:03,774 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:05:03,777 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:05:03,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:05:03,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:05:03" (1/3) ... [2022-12-13 14:05:03,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58bbd21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:05:03, skipping insertion in model container [2022-12-13 14:05:03,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:05:03,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:05:03" (2/3) ... [2022-12-13 14:05:03,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58bbd21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:05:03, skipping insertion in model container [2022-12-13 14:05:03,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:05:03,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:05:03" (3/3) ... [2022-12-13 14:05:03,781 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-t.c [2022-12-13 14:05:03,833 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:05:03,833 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:05:03,833 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:05:03,833 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:05:03,833 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:05:03,833 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:05:03,833 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:05:03,834 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:05:03,837 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) [2022-12-13 14:05:03,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-12-13 14:05:03,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:05:03,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:05:03,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 14:05:03,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 14:05:03,859 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 14:05:03,859 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) [2022-12-13 14:05:03,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2022-12-13 14:05:03,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:05:03,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:05:03,860 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 14:05:03,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 14:05:03,867 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L25true assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 2#L32-2true [2022-12-13 14:05:03,868 INFO L750 eck$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 [2022-12-13 14:05:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-12-13 14:05:03,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:03,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308368874] [2022-12-13 14:05:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:03,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:05:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:05:03,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:03,967 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-12-13 14:05:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:03,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138696368] [2022-12-13 14:05:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:03,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:05:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:05:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-12-13 14:05:03,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:03,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109119226] [2022-12-13 14:05:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:03,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:05:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:03,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:05:04,059 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:05:04,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:05:04,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:05:04,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:05:04,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:05:04,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:04,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:05:04,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:05:04,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2022-12-13 14:05:04,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:05:04,061 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:05:04,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:04,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:04,103 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:04,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:04,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:04,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:05:04,202 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:05:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:04,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:04,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 14:05:04,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:05:04,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:04,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:05:04,223 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: [] [2022-12-13 14:05:04,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:05:04,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:04,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:04,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:04,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 14:05:04,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:05:04,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:04,241 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 14:05:04,241 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: [] [2022-12-13 14:05:04,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 14:05:04,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:04,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:04,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:04,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 14:05:04,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:05:04,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:04,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-12-13 14:05:04,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:04,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:04,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:04,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 14:05:04,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:05:04,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:16,360 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-12-13 14:05:16,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 14:05:16,378 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:05:16,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:05:16,378 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:05:16,378 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:05:16,378 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:05:16,378 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:05:16,378 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:05:16,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2022-12-13 14:05:16,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:05:16,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:05:16,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:16,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:16,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:16,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:16,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:16,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:05:16,447 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:05:16,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:16,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:16,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 14:05:16,451 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 [2022-12-13 14:05:16,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:16,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:16,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:16,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:05:16,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:05:16,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:05:16,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:16,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:16,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-12-13 14:05:16,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:16,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:16,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 14:05:16,472 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 [2022-12-13 14:05:16,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:16,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:16,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:16,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:05:16,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:05:16,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 14:05:16,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:16,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:16,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 14:05:16,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:16,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:16,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 14:05:16,491 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 [2022-12-13 14:05:16,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:16,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:16,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:05:16,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:05:16,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:05:16,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:05:16,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:16,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 14:05:16,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:16,513 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:16,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 14:05:16,515 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 [2022-12-13 14:05:16,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:16,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:16,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 14:05:16,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:05:16,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 14:05:16,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 14:05:16,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:05:16,550 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-12-13 14:05:16,550 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-12-13 14:05:16,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:16,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:16,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:16,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 14:05:16,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:05:16,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-12-13 14:05:16,591 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:05:16,591 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 [-1*ULTIMATE.start_main_~n~0#1 + 1073741823 >= 0, 3*ULTIMATE.start_main_~q~0#1 - 2 >= 0] [2022-12-13 14:05:16,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 14:05:16,602 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-12-13 14:05:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:05:16,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:05:16,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:05:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:05:16,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:05:16,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:05:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:05:16,690 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 [2022-12-13 14:05:16,691 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) [2022-12-13 14:05:16,737 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. [2022-12-13 14:05:16,739 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 [2022-12-13 14:05:16,743 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) [2022-12-13 14:05:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 14:05:16,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2022-12-13 14:05:16,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:05:16,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2022-12-13 14:05:16,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:05:16,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2022-12-13 14:05:16,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:05:16,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2022-12-13 14:05:16,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 14:05:16,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 8 states and 11 transitions. [2022-12-13 14:05:16,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-12-13 14:05:16,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-12-13 14:05:16,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-12-13 14:05:16,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:05:16,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-12-13 14:05:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-12-13 14:05:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-12-13 14:05:16,768 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) [2022-12-13 14:05:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-12-13 14:05:16,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-12-13 14:05:16,769 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-12-13 14:05:16,769 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 14:05:16,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-12-13 14:05:16,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 14:05:16,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:05:16,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:05:16,771 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 14:05:16,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 14:05:16,772 INFO L748 eck$LassoCheckResult]: Stem: 93#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 94#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; 92#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 [2022-12-13 14:05:16,772 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); 91#L53 assume !(main_~r~0#1 >= main_~h~0#1); 90#L53-2 [2022-12-13 14:05:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:16,773 INFO L85 PathProgramCache]: Analyzing trace with hash 925674, now seen corresponding path program 1 times [2022-12-13 14:05:16,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:16,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936343436] [2022-12-13 14:05:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:16,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:16,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:05:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:16,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:05:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:16,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 1 times [2022-12-13 14:05:16,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:16,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634569103] [2022-12-13 14:05:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:16,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:16,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:05:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:05:16,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:05:16,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:16,811 INFO L85 PathProgramCache]: Analyzing trace with hash 889573583, now seen corresponding path program 1 times [2022-12-13 14:05:16,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:05:16,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068835819] [2022-12-13 14:05:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:05:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:05:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:05:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:05:16,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:05:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068835819] [2022-12-13 14:05:16,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068835819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:05:16,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:05:16,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:05:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009040354] [2022-12-13 14:05:16,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:05:17,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 14:05:17,101 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:05:17,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:05:17,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:05:17,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:05:17,101 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:05:17,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:17,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:05:17,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:05:17,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2022-12-13 14:05:17,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:05:17,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:05:17,104 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:17,353 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 14:05:17,881 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:05:17,881 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:05:17,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:17,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:17,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:17,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 14:05:17,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:05:17,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:18,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 14:05:18,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:18,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:18,010 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:18,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 14:05:18,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:05:18,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:05:24,936 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:05:24,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 14:05:24,943 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:05:24,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:05:24,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:05:24,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:05:24,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:05:24,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:24,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:05:24,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:05:24,944 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2022-12-13 14:05:24,944 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:05:24,944 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:05:24,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:05:25,145 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 14:05:25,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:05:25,641 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:05:25,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:25,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:25,642 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:25,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 14:05:25,644 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 [2022-12-13 14:05:25,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:25,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:25,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:25,655 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:25,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:05:25,667 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-12-13 14:05:25,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:25,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:25,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 14:05:25,690 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 14:05:25,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:25,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:25,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:25,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 14:05:25,694 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 [2022-12-13 14:05:25,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:25,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:25,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:25,705 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:25,705 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 14:05:25,720 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-12-13 14:05:25,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:25,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:25,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 14:05:25,753 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-12-13 14:05:25,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:25,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:25,754 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:25,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 14:05:25,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:05:25,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:25,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:25,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:25,768 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:25,768 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:05:25,792 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:05:25,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:25,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:25,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 14:05:25,837 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-12-13 14:05:25,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:25,839 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:25,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 14:05:25,840 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 [2022-12-13 14:05:25,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:05:25,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:25,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:25,853 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:25,853 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-12-13 14:05:25,880 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-12-13 14:05:25,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:25,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:25,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-12-13 14:05:25,935 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-12-13 14:05:25,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:25,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:25,936 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:25,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 14:05:25,938 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 [2022-12-13 14:05:25,948 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:05:25,948 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-12-13 14:05:25,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:25,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:25,949 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:25,949 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 14:05:25,964 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-12-13 14:05:25,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:26,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:26,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 14:05:26,033 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-12-13 14:05:26,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:26,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:26,034 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:26,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 14:05:26,036 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 [2022-12-13 14:05:26,047 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:05:26,048 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-12-13 14:05:26,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:26,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:26,048 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:26,048 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:05:26,079 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:05:26,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:26,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:26,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 14:05:26,511 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-12-13 14:05:26,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:26,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:26,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:26,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 14:05:26,514 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 [2022-12-13 14:05:26,525 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:05:26,525 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-12-13 14:05:26,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:26,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:26,526 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:26,526 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-12-13 14:05:26,554 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-12-13 14:05:26,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:28,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:05:28,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 14:05:28,162 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-12-13 14:05:28,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:28,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:28,163 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:28,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 14:05:28,166 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 [2022-12-13 14:05:28,176 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:05:28,176 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-12-13 14:05:28,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:05:28,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:05:28,177 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:05:28,177 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:05:28,194 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:05:28,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:05:28,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:05:28,449 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-12-13 14:05:28,449 INFO L444 ModelExtractionUtils]: 2 out of 12 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 14:05:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:05:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:05:28,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:05:28,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 14:05:28,452 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:05:28,452 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:05:28,452 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:05:28,453 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 [] [2022-12-13 14:05:28,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 14:05:28,459 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:05:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:05:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:05:28,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:05:28,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:05:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:05:28,486 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:05:28,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:05:28,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 14:06:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:06:22,894 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 [2022-12-13 14:06:22,894 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) [2022-12-13 14:06:22,921 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. [2022-12-13 14:06:22,921 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 [2022-12-13 14:06:22,922 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) [2022-12-13 14:06:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-12-13 14:06:22,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-12-13 14:06:22,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:06:22,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-12-13 14:06:22,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:06:22,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-12-13 14:06:22,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 14:06:22,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2022-12-13 14:06:22,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 14:06:22,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2022-12-13 14:06:22,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-12-13 14:06:22,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-12-13 14:06:22,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2022-12-13 14:06:22,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 14:06:22,923 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 14:06:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2022-12-13 14:06:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-13 14:06:22,924 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) [2022-12-13 14:06:22,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2022-12-13 14:06:22,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 14:06:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:06:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:06:22,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:06:22,926 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) [2022-12-13 14:06:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:06:22,941 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2022-12-13 14:06:22,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2022-12-13 14:06:22,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 14:06:22,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2022-12-13 14:06:22,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-12-13 14:06:22,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-12-13 14:06:22,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-12-13 14:06:22,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:06:22,943 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-12-13 14:06:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-12-13 14:06:22,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 14:06:22,944 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) [2022-12-13 14:06:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-12-13 14:06:22,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-12-13 14:06:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:06:22,945 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-12-13 14:06:22,945 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 14:06:22,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-12-13 14:06:22,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 14:06:22,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:06:22,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:06:22,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:06:22,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 14:06:22,946 INFO L748 eck$LassoCheckResult]: Stem: 176#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 175#L25 assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 170#L32-2 assume !(main_~q~0#1 <= main_~n~0#1); 172#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 178#L53 assume main_~r~0#1 >= main_~h~0#1;main_~p~0#1 := main_~p~0#1 + main_~q~0#1;main_~r~0#1 := main_~r~0#1 - main_~h~0#1; 173#L53-2 [2022-12-13 14:06:22,946 INFO L750 eck$LassoCheckResult]: Loop: 173#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); 174#L53 assume !(main_~r~0#1 >= main_~h~0#1); 173#L53-2 [2022-12-13 14:06:22,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:06:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash 889573581, now seen corresponding path program 1 times [2022-12-13 14:06:22,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:06:22,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363979043] [2022-12-13 14:06:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:06:22,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:06:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:06:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:06:22,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:06:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363979043] [2022-12-13 14:06:22,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363979043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:06:22,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:06:22,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:06:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105618986] [2022-12-13 14:06:22,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:06:22,976 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 14:06:22,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:06:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 2 times [2022-12-13 14:06:22,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:06:22,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032630482] [2022-12-13 14:06:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:06:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:06:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:06:22,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:06:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:06:22,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:06:23,078 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:06:23,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:06:23,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:06:23,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:06:23,078 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 14:06:23,078 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:23,078 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:06:23,078 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:06:23,078 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2022-12-13 14:06:23,078 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:06:23,078 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:06:23,079 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:06:23,299 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 14:06:23,838 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:06:23,838 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 14:06:23,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:23,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:23,839 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:23,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 14:06:23,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 14:06:23,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:06:23,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 14:06:23,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:23,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:23,962 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:23,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 14:06:23,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 14:06:23,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 14:06:28,178 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 14:06:28,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-12-13 14:06:28,185 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 14:06:28,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 14:06:28,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 14:06:28,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 14:06:28,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 14:06:28,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:28,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 14:06:28,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 14:06:28,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2022-12-13 14:06:28,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 14:06:28,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 14:06:28,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 14:06:28,422 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 14:06:28,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 14:06:28,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 14:06:28,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:28,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:28,908 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:28,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 14:06:28,910 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 [2022-12-13 14:06:28,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:06:28,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:28,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:28,921 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:28,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 14:06:28,930 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-12-13 14:06:28,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:28,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:28,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-12-13 14:06:28,951 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-12-13 14:06:28,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:28,952 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:28,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 14:06:28,954 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 [2022-12-13 14:06:28,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:06:28,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:28,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:28,965 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:28,965 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 14:06:28,978 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-12-13 14:06:28,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 14:06:29,010 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-12-13 14:06:29,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,011 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 14:06:29,014 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 [2022-12-13 14:06:29,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:06:29,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,025 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,025 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:06:29,043 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:06:29,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 14:06:29,095 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-12-13 14:06:29,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,096 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 14:06:29,099 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 [2022-12-13 14:06:29,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 14:06:29,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,109 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,110 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-12-13 14:06:29,126 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-12-13 14:06:29,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 14:06:29,182 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-12-13 14:06:29,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,183 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 14:06:29,186 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 [2022-12-13 14:06:29,196 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:06:29,197 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-12-13 14:06:29,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,197 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,197 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-12-13 14:06:29,209 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2022-12-13 14:06:29,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 14:06:29,269 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-12-13 14:06:29,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,270 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 14:06:29,272 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 [2022-12-13 14:06:29,283 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:06:29,283 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-12-13 14:06:29,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,283 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,283 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:06:29,301 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:06:29,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-12-13 14:06:29,441 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-12-13 14:06:29,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,442 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 14:06:29,444 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 [2022-12-13 14:06:29,456 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:06:29,456 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-12-13 14:06:29,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,456 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,456 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-12-13 14:06:29,487 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2022-12-13 14:06:29,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 14:06:29,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-12-13 14:06:29,823 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-12-13 14:06:29,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:29,824 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:29,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 14:06:29,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 14:06:29,836 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-12-13 14:06:29,836 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-12-13 14:06:29,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 14:06:29,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 14:06:29,836 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2022-12-13 14:06:29,836 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-12-13 14:06:29,857 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-12-13 14:06:29,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 14:06:29,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 14:06:30,155 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-12-13 14:06:30,156 INFO L444 ModelExtractionUtils]: 2 out of 12 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 14:06:30,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:06:30,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:30,157 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:30,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 14:06:30,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 14:06:30,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 14:06:30,158 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 14:06:30,159 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 [] [2022-12-13 14:06:30,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-12-13 14:06:30,164 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 14:06:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:06:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:06:30,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:06:30,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:06:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:06:30,188 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:06:30,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:06:30,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec65743b-e573-4c21-9f40-0875e12f020f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0