./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 --- 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-dbf71c6-m [2022-10-17 10:45:04,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:45:04,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:45:04,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:45:04,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:45:04,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:45:04,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:45:04,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:45:04,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:45:04,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:45:04,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:45:04,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:45:04,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:45:04,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:45:04,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:45:04,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:45:04,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:45:04,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:45:04,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:45:04,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:45:04,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:45:04,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:45:04,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:45:04,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:45:04,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:45:04,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:45:04,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:45:04,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:45:04,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:45:04,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:45:04,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:45:04,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:45:04,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:45:04,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:45:04,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:45:04,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:45:04,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:45:04,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:45:04,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:45:04,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:45:04,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:45:04,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:45:04,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:45:04,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:45:04,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:45:04,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:45:04,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:45:04,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:45:04,650 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:45:04,650 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:45:04,650 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:45:04,651 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:45:04,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:45:04,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:45:04,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:45:04,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:45:04,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:45:04,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:45:04,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:45:04,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:45:04,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:45:04,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:45:04,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:45:04,654 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:45:04,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:45:04,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:45:04,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:45:04,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:45:04,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:45:04,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:45:04,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:45:04,659 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_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2022-10-17 10:45:04,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:45:04,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:45:04,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:45:04,992 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:45:04,993 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:45:04,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-restricted-15/Log.c [2022-10-17 10:45:05,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/data/175922eba/918262113610452db8bed678f62b047f/FLAG992e82423 [2022-10-17 10:45:05,486 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:45:05,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/sv-benchmarks/c/termination-restricted-15/Log.c [2022-10-17 10:45:05,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/data/175922eba/918262113610452db8bed678f62b047f/FLAG992e82423 [2022-10-17 10:45:05,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/data/175922eba/918262113610452db8bed678f62b047f [2022-10-17 10:45:05,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:45:05,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:45:05,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:05,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:45:05,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:45:05,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:05" (1/1) ... [2022-10-17 10:45:05,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232c71ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:05, skipping insertion in model container [2022-10-17 10:45:05,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:05" (1/1) ... [2022-10-17 10:45:05,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:45:05,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:45:06,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:06,096 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:45:06,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:06,129 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:45:06,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06 WrapperNode [2022-10-17 10:45:06,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:06,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:06,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:45:06,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:45:06,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,167 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-10-17 10:45:06,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:06,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:45:06,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:45:06,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:45:06,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:45:06,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:45:06,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:45:06,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:45:06,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (1/1) ... [2022-10-17 10:45:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:06,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:06,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:06,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:45:06,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:45:06,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:45:06,337 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:45:06,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:45:06,398 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:45:06,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:45:06,404 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:45:06,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:06 BoogieIcfgContainer [2022-10-17 10:45:06,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:45:06,407 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:45:06,407 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:45:06,415 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:45:06,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:06,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:45:05" (1/3) ... [2022-10-17 10:45:06,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e7cbb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:45:06, skipping insertion in model container [2022-10-17 10:45:06,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:06,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:06" (2/3) ... [2022-10-17 10:45:06,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e7cbb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:45:06, skipping insertion in model container [2022-10-17 10:45:06,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:06,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:06" (3/3) ... [2022-10-17 10:45:06,420 INFO L332 chiAutomizerObserver]: Analyzing ICFG Log.c [2022-10-17 10:45:06,484 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:45:06,485 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:45:06,485 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:45:06,485 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:45:06,485 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:45:06,485 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:45:06,485 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:45:06,486 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:45:06,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) 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) [2022-10-17 10:45:06,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:45:06,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:06,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:06,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:45:06,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:45:06,517 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:45:06,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) 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) [2022-10-17 10:45:06,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:45:06,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:06,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:06,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:45:06,519 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:45:06,527 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 6#L13-2true [2022-10-17 10:45:06,527 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 3#L17-2true assume !(main_~xtmp~0#1 > 1); 9#L17-3true main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 6#L13-2true [2022-10-17 10:45:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:45:06,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293303352] [2022-10-17 10:45:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:06,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,634 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-10-17 10:45:06,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948182121] [2022-10-17 10:45:06,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:06,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948182121] [2022-10-17 10:45:06,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948182121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:06,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:06,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:45:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990721843] [2022-10-17 10:45:06,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:06,725 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:06,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:06,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:45:06,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:45:06,759 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:06,776 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-10-17 10:45:06,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-10-17 10:45:06,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:45:06,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2022-10-17 10:45:06,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:45:06,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:45:06,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2022-10-17 10:45:06,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:06,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:45:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2022-10-17 10:45:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-10-17 10:45:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-10-17 10:45:06,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:45:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:45:06,813 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 10:45:06,813 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:45:06,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-10-17 10:45:06,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:45:06,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:06,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:06,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:45:06,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:45:06,815 INFO L748 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 32#L13-2 [2022-10-17 10:45:06,815 INFO L750 eck$LassoCheckResult]: Loop: 32#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 28#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 29#L17-2 assume !(main_~xtmp~0#1 > 1); 33#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 32#L13-2 [2022-10-17 10:45:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,816 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 10:45:06,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986654845] [2022-10-17 10:45:06,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2022-10-17 10:45:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398998255] [2022-10-17 10:45:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2022-10-17 10:45:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:06,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717629632] [2022-10-17 10:45:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:06,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:06,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:07,083 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:07,084 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:07,084 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:07,084 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:07,085 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:07,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:07,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:07,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2022-10-17 10:45:07,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:07,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:07,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:07,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:07,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:07,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:07,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:07,298 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:07,299 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:07,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:07,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:07,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:45:07,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:07,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:07,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:45:07,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:07,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2022-10-17 10:45:07,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:07,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:07,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:45:07,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:07,512 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:45:07,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:07,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:45:07,584 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:07,585 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:45:07,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:07,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:07,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:45:07,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:07,698 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:07,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:45:07,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:07,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:09,531 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:09,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-10-17 10:45:09,537 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:09,537 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:09,537 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:09,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:09,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:09,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:09,538 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:09,538 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2022-10-17 10:45:09,538 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:09,538 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:09,541 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:09,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:09,563 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:09,566 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:09,570 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:09,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:09,683 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:09,686 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:09,692 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 [2022-10-17 10:45:09,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:09,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:09,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:09,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:09,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:09,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:09,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:09,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:45:09,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:09,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:09,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:09,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:45:09,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:09,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:09,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:09,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:09,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:09,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:09,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:45:09,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:09,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:09,823 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:09,833 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 [2022-10-17 10:45:09,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:09,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:09,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:09,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:09,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:09,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:45:09,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:45:09,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:09,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:09,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:09,914 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:09,921 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 [2022-10-17 10:45:09,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:09,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:09,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:09,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:09,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:09,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:09,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:09,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:45:09,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:09,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:09,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:09,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:09,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:09,996 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 [2022-10-17 10:45:09,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:45:10,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:10,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:10,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:10,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:10,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:10,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:10,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:10,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:45:10,029 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:45:10,029 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:45:10,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,036 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,038 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:45:10,038 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:45:10,038 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:45:10,038 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-10-17 10:45:10,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:45:10,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:10,075 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:45:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:10,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:45:10,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:10,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:45:10,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:45:10,183 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-10-17 10:45:10,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 6 states. [2022-10-17 10:45:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:45:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-10-17 10:45:10,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:45:10,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2022-10-17 10:45:10,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2022-10-17 10:45:10,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2022-10-17 10:45:10,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 10:45:10,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2022-10-17 10:45:10,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-10-17 10:45:10,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-10-17 10:45:10,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-10-17 10:45:10,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:45:10,250 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-10-17 10:45:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-10-17 10:45:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-10-17 10:45:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-10-17 10:45:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-10-17 10:45:10,252 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:45:10,252 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-10-17 10:45:10,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:45:10,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-10-17 10:45:10,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 10:45:10,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:10,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:10,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:45:10,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-10-17 10:45:10,253 INFO L748 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 91#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 92#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 87#L17-2 [2022-10-17 10:45:10,254 INFO L750 eck$LassoCheckResult]: Loop: 87#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 87#L17-2 [2022-10-17 10:45:10,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,254 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:45:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:10,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252555100] [2022-10-17 10:45:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:10,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-10-17 10:45:10,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:10,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313099177] [2022-10-17 10:45:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:10,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-10-17 10:45:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713065709] [2022-10-17 10:45:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:10,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:10,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:10,350 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:10,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:10,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:10,351 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:10,351 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:10,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:10,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:10,351 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2022-10-17 10:45:10,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:10,351 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:10,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:10,424 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:10,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,432 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:10,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:10,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:45:10,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:10,473 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:45:10,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:10,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,512 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:45:10,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:10,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:10,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,543 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:45:10,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:10,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:10,578 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:10,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:10,581 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:10,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:10,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:10,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:10,581 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:10,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:10,581 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:10,581 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2022-10-17 10:45:10,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:10,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:10,582 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,592 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:10,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:10,667 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,668 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,680 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 [2022-10-17 10:45:10,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:10,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:10,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:10,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:10,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:10,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:45:10,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:45:10,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:10,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-10-17 10:45:10,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,727 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,735 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 [2022-10-17 10:45:10,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:10,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:10,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:10,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:10,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:10,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:10,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:10,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:45:10,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:45:10,794 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:45:10,794 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:45:10,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:10,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:10,836 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:10,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-10-17 10:45:10,842 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:45:10,843 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:45:10,843 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:45:10,843 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-10-17 10:45:10,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:45:10,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:10,870 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:45:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:10,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:45:10,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:10,912 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:45:10,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:10,913 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 [2022-10-17 10:45:10,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2022-10-17 10:45:10,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 16 states and 21 transitions. Complement of second has 5 states. [2022-10-17 10:45:10,938 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 [2022-10-17 10:45:10,939 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) [2022-10-17 10:45:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:45:10,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-10-17 10:45:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-10-17 10:45:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-10-17 10:45:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:10,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2022-10-17 10:45:10,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 10:45:10,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2022-10-17 10:45:10,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-10-17 10:45:10,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-10-17 10:45:10,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-10-17 10:45:10,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:45:10,943 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-10-17 10:45:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-10-17 10:45:10,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2022-10-17 10:45:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-10-17 10:45:10,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-10-17 10:45:10,945 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-10-17 10:45:10,945 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:45:10,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-10-17 10:45:10,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 10:45:10,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:10,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:10,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-10-17 10:45:10,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-10-17 10:45:10,946 INFO L748 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 147#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 143#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 144#L17-2 assume !(main_~xtmp~0#1 > 1); 149#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 148#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 142#L17-2 [2022-10-17 10:45:10,946 INFO L750 eck$LassoCheckResult]: Loop: 142#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 142#L17-2 [2022-10-17 10:45:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 2 times [2022-10-17 10:45:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:10,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853219735] [2022-10-17 10:45:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:45:11,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:11,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853219735] [2022-10-17 10:45:11,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853219735] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:11,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:11,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:45:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508599533] [2022-10-17 10:45:11,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:11,034 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:45:11,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-10-17 10:45:11,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:11,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571806994] [2022-10-17 10:45:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:11,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:11,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:11,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:11,075 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:11,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:11,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:11,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:11,075 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:11,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,076 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:11,076 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:11,076 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2022-10-17 10:45:11,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:11,076 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:11,077 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,086 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:11,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:11,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,128 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:45:11,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:11,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,202 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:45:11,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:11,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,238 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:11,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] [2022-10-17 10:45:11,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,263 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:45:11,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:11,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:11,279 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:45:11,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,310 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:45:11,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:11,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:45:11,334 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:45:11,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,354 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:45:11,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:11,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,388 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:45:11,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:11,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:11,432 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:11,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,434 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:11,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:11,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:11,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:11,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:11,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:11,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:11,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2022-10-17 10:45:11,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:11,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:11,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:11,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:11,509 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:11,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,510 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,517 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 [2022-10-17 10:45:11,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:11,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:11,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:11,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:11,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:11,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:11,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:11,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:45:11,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:11,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,580 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,582 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 [2022-10-17 10:45:11,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:11,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:11,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:11,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:11,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:11,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:45:11,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:45:11,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:11,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:11,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,657 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,659 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 [2022-10-17 10:45:11,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:11,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:11,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:11,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:11,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:11,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:11,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:11,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:45:11,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:45:11,690 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:45:11,690 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:45:11,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:11,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:11,692 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:11,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:45:11,694 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:45:11,694 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:45:11,694 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-10-17 10:45:11,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:45:11,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-10-17 10:45:11,718 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:45:11,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,773 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:11,774 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 [2022-10-17 10:45:11,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,792 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2022-10-17 10:45:11,793 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 [2022-10-17 10:45:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:45:11,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2022-10-17 10:45:11,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:11,795 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:45:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,840 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:11,843 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:45:11,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2022-10-17 10:45:11,858 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 [2022-10-17 10:45:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 10:45:11,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2022-10-17 10:45:11,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:11,862 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:45:11,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:11,904 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:45:11,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:11,906 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:45:11,906 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 4 states. [2022-10-17 10:45:11,922 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 [2022-10-17 10:45:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-10-17 10:45:11,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2022-10-17 10:45:11,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:11,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2022-10-17 10:45:11,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:11,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2022-10-17 10:45:11,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:45:11,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-10-17 10:45:11,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:45:11,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-10-17 10:45:11,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:45:11,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:45:11,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:45:11,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:11,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:45:11,934 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:45:11,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:11,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:45:11,935 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:11,935 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-10-17 10:45:11,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-10-17 10:45:11,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:45:11,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:45:11,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:45:11,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:45:11,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:45:11,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:11,936 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:45:11,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:45:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:45:11,940 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:45:11,940 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:45:11,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:45:11,940 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:45:11,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:45:11,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:45:11 BoogieIcfgContainer [2022-10-17 10:45:11,957 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:45:11,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:45:11,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:45:11,958 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:45:11,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:06" (3/4) ... [2022-10-17 10:45:11,961 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:45:11,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:45:11,962 INFO L158 Benchmark]: Toolchain (without parser) took 6082.00ms. Allocated memory was 113.2MB in the beginning and 155.2MB in the end (delta: 41.9MB). Free memory was 74.8MB in the beginning and 88.6MB in the end (delta: -13.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-10-17 10:45:11,962 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:45:11,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.03ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 88.3MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:45:11,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.73ms. Allocated memory is still 113.2MB. Free memory was 88.3MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:45:11,964 INFO L158 Benchmark]: Boogie Preprocessor took 22.27ms. Allocated memory is still 113.2MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:45:11,966 INFO L158 Benchmark]: RCFGBuilder took 214.01ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 77.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:45:11,967 INFO L158 Benchmark]: BuchiAutomizer took 5550.01ms. Allocated memory was 113.2MB in the beginning and 155.2MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 89.0MB in the end (delta: -11.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-10-17 10:45:11,967 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 155.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:45:11,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.03ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 88.3MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.73ms. Allocated memory is still 113.2MB. Free memory was 88.3MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.27ms. Allocated memory is still 113.2MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 214.01ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 77.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5550.01ms. Allocated memory was 113.2MB in the beginning and 155.2MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 89.0MB in the end (delta: -11.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 155.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 32 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf111 neg98 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:45:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:12,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:12,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96c0ac5-e9d9-4233-a95a-d4bdd7527f98/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE