./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5c095fadf59684254d69cca06d3c4bb1b9fa7c0b1f04f6f3052257e0be0a70d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:55:46,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:55:46,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:55:46,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:55:46,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:55:46,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:55:46,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:55:46,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:55:46,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:55:46,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:55:46,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:55:46,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:55:46,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:55:46,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:55:46,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:55:46,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:55:46,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:55:46,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:55:46,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:55:46,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:55:46,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:55:46,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:55:46,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:55:46,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:55:46,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:55:46,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:55:46,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:55:46,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:55:46,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:55:46,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:55:46,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:55:46,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:55:46,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:55:46,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:55:46,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:55:46,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:55:46,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:55:46,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:55:46,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:55:46,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:55:46,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:55:46,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 04:55:46,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:55:46,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:55:46,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:55:46,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:55:46,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:55:46,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:55:46,659 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:55:46,660 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:55:46,660 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:55:46,660 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:55:46,661 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:55:46,661 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:55:46,661 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:55:46,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:55:46,662 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:55:46,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:55:46,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:55:46,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:55:46,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:55:46,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:55:46,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:55:46,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:55:46,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:55:46,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:55:46,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:55:46,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:55:46,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:55:46,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:55:46,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:55:46,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:55:46,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:55:46,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:55:46,668 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:55:46,668 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_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c095fadf59684254d69cca06d3c4bb1b9fa7c0b1f04f6f3052257e0be0a70d1 [2021-11-19 04:55:46,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:55:46,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:55:47,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:55:47,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:55:47,003 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:55:47,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/eca-rers2012/Problem15_label18.c [2021-11-19 04:55:47,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/data/71abe9381/d9ecead08c644c4384af40e6c992e8e5/FLAG89d618aca [2021-11-19 04:55:47,851 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:55:47,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/sv-benchmarks/c/eca-rers2012/Problem15_label18.c [2021-11-19 04:55:47,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/data/71abe9381/d9ecead08c644c4384af40e6c992e8e5/FLAG89d618aca [2021-11-19 04:55:48,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/data/71abe9381/d9ecead08c644c4384af40e6c992e8e5 [2021-11-19 04:55:48,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:55:48,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:55:48,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:55:48,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:55:48,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:55:48,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:48" (1/1) ... [2021-11-19 04:55:48,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b02cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:48, skipping insertion in model container [2021-11-19 04:55:48,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:48" (1/1) ... [2021-11-19 04:55:48,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:55:48,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:55:48,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/sv-benchmarks/c/eca-rers2012/Problem15_label18.c[1259,1272] [2021-11-19 04:55:49,120 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:55:49,129 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:55:49,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/sv-benchmarks/c/eca-rers2012/Problem15_label18.c[1259,1272] [2021-11-19 04:55:49,508 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:55:49,528 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:55:49,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49 WrapperNode [2021-11-19 04:55:49,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:55:49,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:55:49,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:55:49,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:55:49,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:49,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:49,783 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1755 [2021-11-19 04:55:49,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:55:49,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:55:49,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:55:49,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:55:49,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:49,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:49,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:49,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:50,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:50,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:50,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:50,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:55:50,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:55:50,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:55:50,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:55:50,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (1/1) ... [2021-11-19 04:55:50,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:55:50,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:55:50,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:55:50,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:55:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:55:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:55:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:55:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:55:50,372 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:55:50,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:55:53,442 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:55:53,456 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:55:53,457 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:55:53,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:53 BoogieIcfgContainer [2021-11-19 04:55:53,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:55:53,461 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:55:53,461 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:55:53,465 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:55:53,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:55:53,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:55:48" (1/3) ... [2021-11-19 04:55:53,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48f5f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:55:53, skipping insertion in model container [2021-11-19 04:55:53,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:55:53,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:49" (2/3) ... [2021-11-19 04:55:53,468 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48f5f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:55:53, skipping insertion in model container [2021-11-19 04:55:53,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:55:53,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:53" (3/3) ... [2021-11-19 04:55:53,470 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem15_label18.c [2021-11-19 04:55:53,514 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:55:53,514 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:55:53,514 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:55:53,514 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:55:53,515 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:55:53,515 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:55:53,515 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:55:53,515 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:55:53,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 423 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 422 states have internal predecessors, (749), 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) [2021-11-19 04:55:53,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 418 [2021-11-19 04:55:53,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:55:53,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:55:53,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:55:53,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:55:53,603 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:55:53,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 423 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 422 states have internal predecessors, (749), 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) [2021-11-19 04:55:53,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 418 [2021-11-19 04:55:53,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:55:53,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:55:53,625 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:55:53,625 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:55:53,632 INFO L791 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~inputD~0 := 4;~inputB~0 := 2;~inputE~0 := 5;~inputA~0 := 1;~inputF~0 := 6;~inputC~0 := 3;~a4~0 := -89;~a29~0 := -127;~a2~0 := 1;~a0~0 := -44; 336#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 171#L1776-2true [2021-11-19 04:55:53,634 INFO L793 eck$LassoCheckResult]: Loop: 171#L1776-2true assume !false;havoc main_~input~0#1;main_~input~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 319#L1781true assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret7#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 111#L34true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 126#L34-2true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 348#L37-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 143#L40-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 121#L43-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 410#L46-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 64#L49-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 390#L52-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 52#L55-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 209#L58-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 298#L61-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 418#L64-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 283#L67-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 112#L70-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 179#L73-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 402#L76-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 180#L79-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 5#L82-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 244#L85-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 70#L88-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 334#L91-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 53#L94-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 370#L97-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 359#L100-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 237#L103-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 67#L106-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 307#L109-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 354#L112-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 253#L115-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 247#L118-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 295#L121-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 24#L124-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 373#L127-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 422#L130-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 355#L133-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 137#L136-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 98#L139-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 49#L142-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 40#L145-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 396#L148-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 119#L151-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 183#L154-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 9#L157-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 120#L160-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 13#L163-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 160#L166-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 138#L169-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 33#L172-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 188#L175-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -61 < ~a0~0) && ~a29~0 <= -144); 398#L178-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 39#L181-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 308#L184-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 388#L187-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 384#L190-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 290#L193-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 258#L196-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 198#L199-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 59#L202-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 344#L205-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 134#L208-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 399#L211-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 270#L214-1true assume -61 < ~a0~0 && ~a4~0 <= -86 && 1 == calculate_output_~input#1 && ((3 == ~a2~0 && ~a29~0 <= -144) || (2 == ~a2~0 && -16 < ~a29~0 && 43 >= ~a29~0) || (43 < ~a29~0 && 2 == ~a2~0));~a0~0 := 5 * (if -300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926) < 0 && 0 != (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) % 5 then 1 + (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) / 5 else (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) / 5) - 2;~a29~0 := (if (if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019 < 0 && 0 != ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) % 5 then 1 + ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) / 5 else ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) / 5);~a2~0 := 1;calculate_output_#res#1 := -1; 404#L1665true main_#t~ret9#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 171#L1776-2true [2021-11-19 04:55:53,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:55:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:55:53,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:55:53,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566609678] [2021-11-19 04:55:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:55:53,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:55:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:55:53,742 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:55:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:55:53,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:55:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:55:53,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1810396639, now seen corresponding path program 1 times [2021-11-19 04:55:53,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:55:53,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424438881] [2021-11-19 04:55:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:55:53,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:55:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:55:53,934 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:55:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:55:54,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:55:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:55:54,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1921383005, now seen corresponding path program 1 times [2021-11-19 04:55:54,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:55:54,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069591423] [2021-11-19 04:55:54,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:55:54,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:55:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:55:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:55:54,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:55:54,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069591423] [2021-11-19 04:55:54,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069591423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:55:54,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:55:54,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:55:54,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683268583] [2021-11-19 04:55:54,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:55:56,053 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:55:56,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:55:56,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:55:56,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:55:56,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:55:56,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:55:56,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:55:56,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:55:56,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem15_label18.c_Iteration1_Loop [2021-11-19 04:55:56,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:55:56,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:55:56,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:56,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:55:57,400 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-19 04:56:00,607 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:56:00,608 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:56:00,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:56:00,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:56:00,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:56:00,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:56:00,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:56:00,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:56:07,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-19 04:56:07,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:56:07,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:56:07,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:56:07,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37752b6-79d9-40a0-af89-06eda9b1885a/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:56:07,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:56:07,204 INFO L160 nArgumentSynthesizer]: Using integer mode.