./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.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_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/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_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/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_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/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 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d --- 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 10:18:57,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:18:57,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:18:57,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:18:57,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:18:57,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:18:57,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:18:57,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:18:57,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:18:57,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:18:57,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:18:57,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:18:57,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:18:57,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:18:57,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:18:57,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:18:57,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:18:57,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:18:57,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:18:57,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:18:57,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:18:57,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:18:57,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:18:57,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:18:57,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:18:57,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:18:57,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:18:57,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:18:57,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:18:57,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:18:57,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:18:57,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:18:57,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:18:57,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:18:57,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:18:57,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:18:57,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:18:57,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:18:57,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:18:57,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:18:57,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:18:57,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:18:57,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:18:57,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:18:57,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:18:57,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:18:57,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:18:57,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:18:57,523 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:18:57,524 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:18:57,524 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:18:57,524 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:18:57,524 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:18:57,525 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:18:57,525 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:18:57,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:18:57,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:18:57,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:18:57,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:18:57,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:18:57,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:18:57,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:18:57,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:18:57,527 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:18:57,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:18:57,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:18:57,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:18:57,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:18:57,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:18:57,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:18:57,530 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:18:57,530 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_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d [2022-10-17 10:18:57,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:18:57,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:18:57,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:18:57,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:18:57,858 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:18:57,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2022-10-17 10:18:57,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/data/fdaca07a4/7b22bacaaa194d27803017d1d9ca1efb/FLAGe1f547f05 [2022-10-17 10:18:58,414 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:18:58,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2022-10-17 10:18:58,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/data/fdaca07a4/7b22bacaaa194d27803017d1d9ca1efb/FLAGe1f547f05 [2022-10-17 10:18:58,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/data/fdaca07a4/7b22bacaaa194d27803017d1d9ca1efb [2022-10-17 10:18:58,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:18:58,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:18:58,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:18:58,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:18:58,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:18:58,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:18:58" (1/1) ... [2022-10-17 10:18:58,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462120b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:58, skipping insertion in model container [2022-10-17 10:18:58,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:18:58" (1/1) ... [2022-10-17 10:18:58,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:18:58,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:18:59,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:59,052 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:18:59,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:59,083 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:18:59,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59 WrapperNode [2022-10-17 10:18:59,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:18:59,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:59,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:18:59,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:18:59,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,122 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-10-17 10:18:59,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:59,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:18:59,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:18:59,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:18:59,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:18:59,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:18:59,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:18:59,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:18:59,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (1/1) ... [2022-10-17 10:18:59,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:18:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:18:59,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:18:59,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:18:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:18:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:18:59,335 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:18:59,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:18:59,419 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:18:59,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:18:59,427 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:18:59,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:59 BoogieIcfgContainer [2022-10-17 10:18:59,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:18:59,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:18:59,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:18:59,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:18:59,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:18:59,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:18:58" (1/3) ... [2022-10-17 10:18:59,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@339cf110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:18:59, skipping insertion in model container [2022-10-17 10:18:59,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:18:59,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:59" (2/3) ... [2022-10-17 10:18:59,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@339cf110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:18:59, skipping insertion in model container [2022-10-17 10:18:59,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:18:59,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:59" (3/3) ... [2022-10-17 10:18:59,440 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex9.c [2022-10-17 10:18:59,502 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:18:59,503 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:18:59,503 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:18:59,503 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:18:59,503 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:18:59,503 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:18:59,503 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:18:59,504 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:18:59,509 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 10:18:59,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:18:59,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:18:59,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:18:59,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:18:59,538 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:18:59,539 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:18:59,539 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 10:18:59,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:18:59,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:18:59,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:18:59,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:18:59,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:18:59,550 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L21-2true [2022-10-17 10:18:59,551 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 4#L18true assume main_~q~0#1 < main_~p~0#1;main_~q~0#1 := main_~q~0#1 - 1; 7#L21-2true [2022-10-17 10:18:59,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:18:59,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:59,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341062865] [2022-10-17 10:18:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:18:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:18:59,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-10-17 10:18:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:59,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479988491] [2022-10-17 10:18:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:18:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:18:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-10-17 10:18:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:59,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631867705] [2022-10-17 10:18:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:59,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:18:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:18:59,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:18:59,854 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:18:59,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:18:59,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:18:59,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:18:59,856 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:18:59,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:18:59,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:18:59,856 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:18:59,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2022-10-17 10:18:59,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:18:59,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:18:59,887 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 10:18:59,918 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 10:18:59,929 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 10:19:00,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:19:00,024 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:19:00,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:00,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:00,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:19:00,061 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:19:00,062 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 10:19:00,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:00,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:00,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:19:00,141 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:19:00,141 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 10:19:00,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:00,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:19:00,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:19:00,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:00,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:19:00,341 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:19:00,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,353 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:19:00,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:19:00,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:19:00,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:19:00,354 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:19:00,354 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:19:00,354 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:19:00,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2022-10-17 10:19:00,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:19:00,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:19:00,358 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 10:19:00,367 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 10:19:00,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:19:00,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:19:00,466 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:19:00,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,476 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 10:19:00,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:19:00,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:19:00,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:19:00,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:19:00,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:19:00,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:19:00,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:19:00,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:19:00,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,585 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,591 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 10:19:00,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:19:00,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:19:00,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:19:00,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:19:00,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:19:00,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:19:00,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:19:00,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:19:00,624 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:19:00,628 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:19:00,628 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:19:00,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:00,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:00,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:00,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:19:00,643 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:19:00,643 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:19:00,644 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2022-10-17 10:19:00,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:19:00,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:00,689 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:19:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:00,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:19:00,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:19:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:00,737 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:19:00,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:19:00,766 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 10:19:00,805 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:19:00,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:19:00,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 40 transitions. Complement of second has 7 states. [2022-10-17 10:19:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:19:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:19:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-10-17 10:19:00,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:19:00,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:00,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:19:00,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:00,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:19:00,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:00,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2022-10-17 10:19:00,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:19:00,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 16 transitions. [2022-10-17 10:19:00,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:19:00,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:19:00,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2022-10-17 10:19:00,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:19:00,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-10-17 10:19:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2022-10-17 10:19:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-10-17 10:19:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:19:00,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2022-10-17 10:19:00,954 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-10-17 10:19:00,955 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-10-17 10:19:00,955 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:19:00,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2022-10-17 10:19:00,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:19:00,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:19:00,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:19:00,958 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:19:00,958 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:19:00,958 INFO L748 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 87#L21-2 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 78#L18 [2022-10-17 10:19:00,958 INFO L750 eck$LassoCheckResult]: Loop: 78#L18 assume !(main_~q~0#1 < main_~p~0#1); 79#L21 assume main_~p~0#1 < main_~q~0#1;main_~p~0#1 := main_~p~0#1 - 1; 85#L21-2 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 78#L18 [2022-10-17 10:19:00,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:19:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709982195] [2022-10-17 10:19:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:00,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:19:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:00,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:19:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2022-10-17 10:19:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:00,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269114475] [2022-10-17 10:19:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:00,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:19:00,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-10-17 10:19:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:00,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:19:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2022-10-17 10:19:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:01,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10988020] [2022-10-17 10:19:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:01,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:19:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:01,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:19:01,055 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:19:01,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:19:01,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:19:01,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:19:01,055 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:19:01,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:19:01,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:19:01,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2022-10-17 10:19:01,056 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:19:01,056 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:19:01,058 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 10:19:01,062 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 10:19:01,066 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 10:19:01,110 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:19:01,111 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:19:01,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,112 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:01,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:01,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:19:01,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:19:01,169 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 10:19:01,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:01,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:01,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:19:01,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:19:01,245 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:19:01,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,277 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:19:01,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:19:01,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:01,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,361 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:19:01,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:19:01,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:19:01,485 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:19:01,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,489 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:19:01,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:19:01,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:19:01,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:19:01,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:19:01,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:19:01,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:19:01,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2022-10-17 10:19:01,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:19:01,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:19:01,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:19:01,495 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 10:19:01,499 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 10:19:01,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:19:01,550 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:19:01,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,552 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,561 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 10:19:01,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:19:01,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:19:01,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:19:01,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:19:01,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:19:01,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:19:01,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:19:01,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:19:01,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,632 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,638 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 10:19:01,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:19:01,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:19:01,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:19:01,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:19:01,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:19:01,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:19:01,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:19:01,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:19:01,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,712 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,721 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 10:19:01,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:19:01,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:19:01,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:19:01,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:19:01,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:19:01,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:19:01,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:19:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:19:01,748 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:19:01,761 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:19:01,761 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:19:01,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:19:01,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:01,762 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:01,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:19:01,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:19:01,768 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:19:01,768 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2022-10-17 10:19:01,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:19:01,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:01,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:19:01,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:01,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:19:01,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:19:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:01,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:19:01,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:19:01,875 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 10:19:01,876 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:19:01,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 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 10:19:01,907 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. 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 26 states and 39 transitions. Complement of second has 6 states. [2022-10-17 10:19:01,908 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 10:19:01,909 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 10:19:01,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-10-17 10:19:01,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2022-10-17 10:19:01,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:01,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2022-10-17 10:19:01,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:01,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2022-10-17 10:19:01,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:19:01,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 39 transitions. [2022-10-17 10:19:01,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:19:01,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 36 transitions. [2022-10-17 10:19:01,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:19:01,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-10-17 10:19:01,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 36 transitions. [2022-10-17 10:19:01,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:19:01,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 36 transitions. [2022-10-17 10:19:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 36 transitions. [2022-10-17 10:19:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-10-17 10:19:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 22 states have internal predecessors, (35), 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 10:19:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2022-10-17 10:19:01,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-10-17 10:19:01,919 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-10-17 10:19:01,919 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:19:01,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2022-10-17 10:19:01,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:19:01,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:19:01,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:19:01,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:19:01,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:19:01,921 INFO L748 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 167#L21-2 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 173#L18 assume !(main_~q~0#1 < main_~p~0#1); 161#L21 [2022-10-17 10:19:01,922 INFO L750 eck$LassoCheckResult]: Loop: 161#L21 assume !(main_~p~0#1 < main_~q~0#1); 162#L21-2 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 164#L18 assume !(main_~q~0#1 < main_~p~0#1); 161#L21 [2022-10-17 10:19:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:01,922 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-10-17 10:19:01,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:01,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506217665] [2022-10-17 10:19:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:01,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:01,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:19:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:19:01,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:19:01,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2022-10-17 10:19:01,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:01,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951684248] [2022-10-17 10:19:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:01,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:02,029 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 10:19:02,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:19:02,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951684248] [2022-10-17 10:19:02,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951684248] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:19:02,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:19:02,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:19:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832250559] [2022-10-17 10:19:02,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:19:02,039 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:19:02,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:19:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:19:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:19:02,046 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. cyclomatic complexity: 16 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 10:19:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:19:02,076 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2022-10-17 10:19:02,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2022-10-17 10:19:02,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:19:02,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2022-10-17 10:19:02,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:19:02,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:19:02,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:19:02,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:19:02,079 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:19:02,079 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:19:02,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:19:02,081 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:19:02,081 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:19:02,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:19:02,081 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:19:02,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:19:02,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:19:02 BoogieIcfgContainer [2022-10-17 10:19:02,090 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:19:02,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:19:02,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:19:02,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:19:02,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:59" (3/4) ... [2022-10-17 10:19:02,094 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:19:02,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:19:02,095 INFO L158 Benchmark]: Toolchain (without parser) took 3299.08ms. Allocated memory is still 125.8MB. Free memory was 84.9MB in the beginning and 65.6MB in the end (delta: 19.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-10-17 10:19:02,095 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:02,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.83ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 101.2MB in the end (delta: -16.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:19:02,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 125.8MB. Free memory was 100.7MB in the beginning and 99.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:02,097 INFO L158 Benchmark]: Boogie Preprocessor took 25.34ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:02,098 INFO L158 Benchmark]: RCFGBuilder took 278.05ms. Allocated memory is still 125.8MB. Free memory was 98.6MB in the beginning and 90.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:19:02,099 INFO L158 Benchmark]: BuchiAutomizer took 2659.65ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 66.1MB in the end (delta: 23.9MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-10-17 10:19:02,099 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 125.8MB. Free memory was 66.1MB in the beginning and 65.6MB in the end (delta: 501.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:02,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.83ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 101.2MB in the end (delta: -16.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 125.8MB. Free memory was 100.7MB in the beginning and 99.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.34ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.05ms. Allocated memory is still 125.8MB. Free memory was 98.6MB in the beginning and 90.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2659.65ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 66.1MB in the end (delta: 23.9MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 125.8MB. Free memory was 66.1MB in the beginning and 65.6MB in the end (delta: 501.1kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function q and consists of 5 locations. One deterministic module has affine ranking function p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 18 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 77ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 10:19:02,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:02,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7499934d-e9f6-4b00-a5f9-49ca7206cd0d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE