./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa --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 ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:28:41,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:28:41,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:28:41,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:28:41,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:28:41,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:28:41,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:28:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:28:41,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:28:41,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:28:41,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:28:41,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:28:41,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:28:41,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:28:41,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:28:41,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:28:41,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:28:41,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:28:41,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:28:41,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:28:41,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:28:41,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:28:41,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:28:41,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:28:41,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:28:41,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:28:41,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:28:41,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:28:41,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:28:41,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:28:41,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:28:41,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:28:41,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:28:41,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:28:41,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:28:41,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:28:41,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:28:41,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:28:41,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:28:41,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:28:41,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:28:41,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 19:28:41,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:28:41,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:28:41,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:28:41,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:28:41,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:28:41,395 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:28:41,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:28:41,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:28:41,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:28:41,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:28:41,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:28:41,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:28:41,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:28:41,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:28:41,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:28:41,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:28:41,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:28:41,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:28:41,398 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:28:41,398 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_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 [2021-12-06 19:28:41,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:28:41,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:28:41,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:28:41,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:28:41,620 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:28:41,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-12-06 19:28:41,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/data/a5b1d3a87/0aed248b054941489df27aadad97775c/FLAG822439665 [2021-12-06 19:28:42,012 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:28:42,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-12-06 19:28:42,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/data/a5b1d3a87/0aed248b054941489df27aadad97775c/FLAG822439665 [2021-12-06 19:28:42,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/data/a5b1d3a87/0aed248b054941489df27aadad97775c [2021-12-06 19:28:42,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:28:42,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:28:42,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:42,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:28:42,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:28:42,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d1f40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42, skipping insertion in model container [2021-12-06 19:28:42,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:28:42,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:28:42,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:42,142 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:28:42,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:42,159 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:28:42,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42 WrapperNode [2021-12-06 19:28:42,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:42,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:42,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:28:42,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:28:42,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,183 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-12-06 19:28:42,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:42,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:28:42,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:28:42,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:28:42,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:28:42,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:28:42,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:28:42,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:28:42,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (1/1) ... [2021-12-06 19:28:42,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:42,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:42,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:28:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:28:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:28:42,304 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:28:42,305 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:28:42,346 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:28:42,351 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:28:42,351 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 19:28:42,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:42 BoogieIcfgContainer [2021-12-06 19:28:42,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:28:42,353 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:28:42,353 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:28:42,356 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:28:42,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:42,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:28:42" (1/3) ... [2021-12-06 19:28:42,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c124a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:28:42, skipping insertion in model container [2021-12-06 19:28:42,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:42,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:42" (2/3) ... [2021-12-06 19:28:42,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c124a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:28:42, skipping insertion in model container [2021-12-06 19:28:42,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:42,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:42" (3/3) ... [2021-12-06 19:28:42,359 INFO L388 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2021-12-06 19:28:42,392 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:28:42,392 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:28:42,392 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:28:42,392 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:28:42,392 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:28:42,393 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:28:42,393 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:28:42,393 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:28:42,410 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) [2021-12-06 19:28:42,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:28:42,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:42,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:42,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:28:42,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:28:42,442 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:28:42,442 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) [2021-12-06 19:28:42,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:28:42,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:42,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:42,443 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:28:42,443 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:28:42,448 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L10-2true [2021-12-06 19:28:42,448 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 3#L12-2true assume !(main_~y~0#1 < main_~x~0#1); 8#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 5#L10-2true [2021-12-06 19:28:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 19:28:42,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806937865] [2021-12-06 19:28:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,513 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:42,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,527 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-12-06 19:28:42,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051015234] [2021-12-06 19:28:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:42,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:42,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051015234] [2021-12-06 19:28:42,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051015234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:42,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:42,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:28:42,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799323330] [2021-12-06 19:28:42,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:42,578 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 19:28:42,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:42,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:28:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:28:42,604 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:42,618 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-06 19:28:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:28:42,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 19:28:42,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 19:28:42,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2021-12-06 19:28:42,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 19:28:42,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 19:28:42,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-12-06 19:28:42,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:28:42,628 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 19:28:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-12-06 19:28:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-06 19:28:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-06 19:28:42,646 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 19:28:42,646 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-06 19:28:42,646 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:28:42,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-12-06 19:28:42,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 19:28:42,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:42,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:42,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:28:42,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 19:28:42,647 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 30#L10-2 [2021-12-06 19:28:42,647 INFO L793 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 28#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 29#L12-2 assume !(main_~y~0#1 < main_~x~0#1); 33#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 30#L10-2 [2021-12-06 19:28:42,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-06 19:28:42,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854516494] [2021-12-06 19:28:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2021-12-06 19:28:42,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453716209] [2021-12-06 19:28:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,662 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:42,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-12-06 19:28:42,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079748609] [2021-12-06 19:28:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,674 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:42,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:42,755 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:42,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:42,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:42,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:42,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:28:42,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:42,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:42,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-12-06 19:28:42,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:42,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:42,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:42,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:42,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:42,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:42,836 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:28:42,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:42,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:42,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 19:28:42,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:42,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:42,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:28:42,865 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: [] [2021-12-06 19:28:42,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:42,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:42,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:42,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 19:28:42,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:42,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:42,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:28:42,913 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: [] [2021-12-06 19:28:42,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 19:28:42,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:42,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:42,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 19:28:42,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:42,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:42,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 19:28:42,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:42,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:42,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:42,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 19:28:42,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:28:42,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,001 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:28:43,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:43,003 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:43,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:43,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:43,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:43,003 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:28:43,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:43,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:43,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-12-06 19:28:43,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:43,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:43,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,050 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:43,053 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:28:43,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 19:28:43,057 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 [2021-12-06 19:28:43,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:28:43,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:28:43,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:28:43,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 19:28:43,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 19:28:43,107 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 [2021-12-06 19:28:43,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:28:43,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:28:43,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:28:43,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:43,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,141 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 19:28:43,142 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 [2021-12-06 19:28:43,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:28:43,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:28:43,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:28:43,153 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:28:43,157 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:28:43,157 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:28:43,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,159 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 19:28:43,160 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:28:43,160 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:28:43,160 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:28:43,161 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 19:28:43,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 19:28:43,181 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:28:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,198 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 19:28:43,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 19:28:43,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 4 states. [2021-12-06 19:28:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:28:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-06 19:28:43,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 19:28:43,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 19:28:43,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-06 19:28:43,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-12-06 19:28:43,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 19:28:43,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2021-12-06 19:28:43,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-06 19:28:43,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-06 19:28:43,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-12-06 19:28:43,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:28:43,260 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 19:28:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-12-06 19:28:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-12-06 19:28:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-12-06 19:28:43,262 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-06 19:28:43,262 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-06 19:28:43,262 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:28:43,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-12-06 19:28:43,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 19:28:43,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:43,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:43,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 19:28:43,263 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 19:28:43,263 INFO L791 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 88#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 85#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 82#L12-2 [2021-12-06 19:28:43,263 INFO L793 eck$LassoCheckResult]: Loop: 82#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 82#L12-2 [2021-12-06 19:28:43,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,263 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-06 19:28:43,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301881546] [2021-12-06 19:28:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,267 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:43,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,269 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-12-06 19:28:43,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243975925] [2021-12-06 19:28:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,273 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-12-06 19:28:43,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724579231] [2021-12-06 19:28:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,280 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:43,292 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:43,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:43,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:43,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:43,292 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:28:43,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:43,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:43,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-12-06 19:28:43,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:43,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:43,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:43,319 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:28:43,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 19:28:43,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:43,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,337 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:28:43,337 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: [] [2021-12-06 19:28:43,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 19:28:43,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,357 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 19:28:43,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:43,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:28:43,371 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: [] [2021-12-06 19:28:43,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 19:28:43,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,404 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 19:28:43,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:43,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 19:28:43,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 19:28:43,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:28:43,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,633 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:28:43,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 19:28:43,636 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:43,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:43,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:43,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:43,636 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:28:43,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:43,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:43,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-12-06 19:28:43,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:43,641 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:43,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 19:28:43,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:43,664 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:28:43,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,665 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 19:28:43,666 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 [2021-12-06 19:28:43,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:28:43,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:28:43,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:28:43,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 19:28:43,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,698 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 19:28:43,699 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 [2021-12-06 19:28:43,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:28:43,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:28:43,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:28:43,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 19:28:43,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,730 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 19:28:43,731 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 [2021-12-06 19:28:43,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:43,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:28:43,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:43,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:43,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:43,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:28:43,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:28:43,742 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:28:43,745 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 19:28:43,745 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:28:43,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,746 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 19:28:43,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:28:43,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:28:43,747 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:28:43,747 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 19:28:43,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:43,766 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:28:43,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,783 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:43,783 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:28:43,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,792 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2021-12-06 19:28:43,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:28:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-06 19:28:43,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-06 19:28:43,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-06 19:28:43,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 19:28:43,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:43,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2021-12-06 19:28:43,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 19:28:43,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-12-06 19:28:43,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-06 19:28:43,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-12-06 19:28:43,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-06 19:28:43,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:28:43,795 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-06 19:28:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-06 19:28:43,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2021-12-06 19:28:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-12-06 19:28:43,796 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 19:28:43,796 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 19:28:43,796 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:28:43,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-12-06 19:28:43,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 19:28:43,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:43,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:43,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-12-06 19:28:43,797 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 19:28:43,797 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 141#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 139#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 140#L12-2 assume !(main_~y~0#1 < main_~x~0#1); 145#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 142#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 138#L12-2 [2021-12-06 19:28:43,797 INFO L793 eck$LassoCheckResult]: Loop: 138#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 138#L12-2 [2021-12-06 19:28:43,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 2 times [2021-12-06 19:28:43,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266840537] [2021-12-06 19:28:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:43,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:43,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266840537] [2021-12-06 19:28:43,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266840537] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:28:43,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553667973] [2021-12-06 19:28:43,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:28:43,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:28:43,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,823 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-06 19:28:43,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:28:43,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:28:43,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:28:43,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:43,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:28:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:43,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553667973] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:28:43,877 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:28:43,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2021-12-06 19:28:43,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924364818] [2021-12-06 19:28:43,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:28:43,878 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 19:28:43,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:43,878 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2021-12-06 19:28:43,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:43,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039754846] [2021-12-06 19:28:43,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:43,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:43,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:43,892 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:43,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:43,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:43,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:43,892 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:28:43,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:43,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:43,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-12-06 19:28:43,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:43,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:43,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:43,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:43,917 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:28:43,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,918 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 19:28:43,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:43,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:28:43,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:28:43,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:43,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,953 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 19:28:43,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:28:43,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:43,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:43,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:43,981 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:43,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 19:28:43,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:28:43,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:28:44,141 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:28:44,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 19:28:44,144 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:28:44,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:28:44,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:28:44,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:28:44,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:28:44,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:44,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:28:44,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:28:44,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-12-06 19:28:44,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:28:44,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:28:44,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:44,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:44,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:28:44,164 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:28:44,164 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:28:44,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:44,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:44,165 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:44,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 19:28:44,167 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 [2021-12-06 19:28:44,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:44,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:44,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:44,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:44,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:28:44,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:28:44,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:28:44,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:44,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:44,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:44,198 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:44,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 19:28:44,199 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 [2021-12-06 19:28:44,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:28:44,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:28:44,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:28:44,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:28:44,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:28:44,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:28:44,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:28:44,209 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:28:44,212 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 19:28:44,212 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:28:44,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:44,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:44,213 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:44,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 19:28:44,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:28:44,214 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:28:44,214 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:28:44,214 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-06 19:28:44,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 19:28:44,233 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:28:44,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,255 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:44,256 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:28:44,256 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,265 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2021-12-06 19:28:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:28:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-06 19:28:44,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-06 19:28:44,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:44,267 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 19:28:44,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:44,289 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:28:44,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,296 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2021-12-06 19:28:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:28:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-06 19:28:44,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-06 19:28:44,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:44,297 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 19:28:44,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,316 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:28:44,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:28:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:44,316 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 19:28:44,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,325 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 4 states. [2021-12-06 19:28:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 19:28:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 19:28:44,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-06 19:28:44,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:44,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-06 19:28:44,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:44,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-06 19:28:44,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:28:44,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-12-06 19:28:44,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:28:44,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-12-06 19:28:44,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 19:28:44,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 19:28:44,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 19:28:44,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:28:44,329 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:28:44,330 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:28:44,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:44,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:28:44,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:28:44,330 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:44,331 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 19:28:44,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:28:44,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 19:28:44,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:28:44,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 19:28:44,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 19:28:44,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:28:44,332 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 19:28:44,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:28:44,332 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 19:28:44,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 19:28:44,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:28:44 BoogieIcfgContainer [2021-12-06 19:28:44,338 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:28:44,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:28:44,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:28:44,339 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:28:44,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:42" (3/4) ... [2021-12-06 19:28:44,342 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:28:44,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:28:44,343 INFO L158 Benchmark]: Toolchain (without parser) took 2313.57ms. Allocated memory is still 127.9MB. Free memory was 89.9MB in the beginning and 59.1MB in the end (delta: 30.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-06 19:28:44,343 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:44,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 129.62ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 81.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:28:44,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.45ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:44,344 INFO L158 Benchmark]: Boogie Preprocessor took 16.80ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 931.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:28:44,345 INFO L158 Benchmark]: RCFGBuilder took 150.57ms. Allocated memory is still 127.9MB. Free memory was 78.7MB in the beginning and 70.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:28:44,345 INFO L158 Benchmark]: BuchiAutomizer took 1985.27ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 59.8MB in the end (delta: 10.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-12-06 19:28:44,345 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 127.9MB. Free memory was 59.8MB in the beginning and 59.1MB in the end (delta: 635.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:44,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 129.62ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 81.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.45ms. Allocated memory is still 127.9MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.80ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 931.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 150.57ms. Allocated memory is still 127.9MB. Free memory was 78.7MB in the beginning and 70.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1985.27ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 59.8MB in the end (delta: 10.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 127.9MB. Free memory was 59.8MB in the beginning and 59.1MB in the end (delta: 635.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 26 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 19:28:44,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 19:28:44,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-06 19:28:44,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 19:28:44,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_097b3cee-0ca7-4156-9534-7965f510c4d3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE