./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:25:53,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:25:53,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:25:53,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:25:53,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:25:53,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:25:53,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:25:53,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:25:53,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:25:53,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:25:53,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:25:53,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:25:53,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:25:53,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:25:53,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:25:53,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:25:53,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:25:53,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:25:53,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:25:53,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:25:53,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:25:53,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:25:53,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:25:53,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:25:53,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:25:53,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:25:53,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:25:53,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:25:53,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:25:53,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:25:53,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:25:53,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:25:53,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:25:53,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:25:53,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:25:53,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:25:53,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:25:53,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:25:53,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:25:53,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:25:53,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:25:53,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 13:25:53,160 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:25:53,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:25:53,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:25:53,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:25:53,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:25:53,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:25:53,162 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:25:53,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 13:25:53,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 13:25:53,163 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 13:25:53,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 13:25:53,163 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 13:25:53,163 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 13:25:53,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 13:25:53,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 13:25:53,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:25:53,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 13:25:53,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:25:53,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 13:25:53,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:25:53,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:25:53,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:25:53,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:25:53,167 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 13:25:53,167 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_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2022-12-13 13:25:53,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:25:53,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:25:53,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:25:53,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:25:53,369 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:25:53,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-bwb/and-02.c [2022-12-13 13:25:56,027 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:25:56,168 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:25:56,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/sv-benchmarks/c/termination-bwb/and-02.c [2022-12-13 13:25:56,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/data/1879db8d2/568c28e80cf4480c951505e9c7f08de2/FLAG19e2f77d8 [2022-12-13 13:25:56,184 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/data/1879db8d2/568c28e80cf4480c951505e9c7f08de2 [2022-12-13 13:25:56,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:25:56,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:25:56,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:25:56,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:25:56,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:25:56,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c18254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56, skipping insertion in model container [2022-12-13 13:25:56,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:25:56,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:25:56,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:25:56,319 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:25:56,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:25:56,341 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:25:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56 WrapperNode [2022-12-13 13:25:56,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:25:56,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:25:56,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:25:56,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:25:56,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,364 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-12-13 13:25:56,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:25:56,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:25:56,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:25:56,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:25:56,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:25:56,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:25:56,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:25:56,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:25:56,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (1/1) ... [2022-12-13 13:25:56,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:56,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:56,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:56,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 13:25:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:25:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:25:56,497 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:25:56,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:25:56,567 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:25:56,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:25:56,571 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:25:56,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:56 BoogieIcfgContainer [2022-12-13 13:25:56,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:25:56,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 13:25:56,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 13:25:56,576 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 13:25:56,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:56,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 01:25:56" (1/3) ... [2022-12-13 13:25:56,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b1668c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:25:56, skipping insertion in model container [2022-12-13 13:25:56,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:56,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:56" (2/3) ... [2022-12-13 13:25:56,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b1668c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:25:56, skipping insertion in model container [2022-12-13 13:25:56,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:56,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:56" (3/3) ... [2022-12-13 13:25:56,579 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2022-12-13 13:25:56,617 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 13:25:56,618 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 13:25:56,618 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 13:25:56,618 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 13:25:56,618 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 13:25:56,618 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 13:25:56,618 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 13:25:56,618 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 13:25:56,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:56,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 13:25:56,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:56,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:56,637 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 13:25:56,637 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 13:25:56,637 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 13:25:56,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:56,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 13:25:56,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:56,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:56,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 13:25:56,638 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 13:25:56,644 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2022-12-13 13:25:56,644 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2022-12-13 13:25:56,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 13:25:56,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:56,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225965742] [2022-12-13 13:25:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:56,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2022-12-13 13:25:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:56,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450447495] [2022-12-13 13:25:56,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2022-12-13 13:25:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:56,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821737047] [2022-12-13 13:25:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:56,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:56,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:56,820 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:56,821 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:56,821 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:56,821 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:56,821 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:25:56,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:56,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:56,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:56,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2022-12-13 13:25:56,822 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:56,822 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:56,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,854 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:56,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:25:56,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:56,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:56,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:56,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 13:25:56,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:56,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:56,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:56,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 13:25:56,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:25:56,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:56,957 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:25:56,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 13:25:56,961 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:56,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:56,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:56,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:56,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:25:56,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:56,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:56,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:56,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2022-12-13 13:25:56,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:56,962 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:56,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:56,976 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,014 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:57,019 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:25:57,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 13:25:57,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:57,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:57,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:57,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:57,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:57,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:57,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:57,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:57,042 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:25:57,049 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 13:25:57,049 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 13:25:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,081 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 13:25:57,082 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:25:57,083 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 13:25:57,083 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:25:57,083 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 13:25:57,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 13:25:57,089 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 13:25:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:25:57,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,124 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:25:57,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,151 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:25:57,152 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 46 transitions. Complement of second has 6 states. [2022-12-13 13:25:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:25:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-12-13 13:25:57,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-12-13 13:25:57,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-12-13 13:25:57,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 13:25:57,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 46 transitions. [2022-12-13 13:25:57,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 13:25:57,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 14 states and 21 transitions. [2022-12-13 13:25:57,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-12-13 13:25:57,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-12-13 13:25:57,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2022-12-13 13:25:57,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:57,208 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-12-13 13:25:57,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2022-12-13 13:25:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2022-12-13 13:25:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2022-12-13 13:25:57,234 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 13:25:57,234 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-12-13 13:25:57,234 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 13:25:57,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2022-12-13 13:25:57,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-12-13 13:25:57,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:57,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:57,235 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 13:25:57,235 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 13:25:57,236 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 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_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 89#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 81#L18 assume main_~x~0#1 > 0; 82#L19 [2022-12-13 13:25:57,236 INFO L750 eck$LassoCheckResult]: Loop: 82#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 80#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 85#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 86#L18 assume main_~x~0#1 > 0; 82#L19 [2022-12-13 13:25:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-12-13 13:25:57,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024538970] [2022-12-13 13:25:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1455309, now seen corresponding path program 1 times [2022-12-13 13:25:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4643455] [2022-12-13 13:25:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:57,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4643455] [2022-12-13 13:25:57,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4643455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:57,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:57,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:25:57,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641396480] [2022-12-13 13:25:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:57,300 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:57,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:57,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:57,303 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:57,324 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2022-12-13 13:25:57,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-12-13 13:25:57,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:57,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2022-12-13 13:25:57,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-12-13 13:25:57,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-12-13 13:25:57,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2022-12-13 13:25:57,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:57,326 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-12-13 13:25:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2022-12-13 13:25:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 13:25:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2022-12-13 13:25:57,327 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-12-13 13:25:57,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:25:57,329 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-12-13 13:25:57,329 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 13:25:57,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2022-12-13 13:25:57,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:57,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:57,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:57,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 13:25:57,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 13:25:57,330 INFO L748 eck$LassoCheckResult]: Stem: 119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 121#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 118#L18 assume main_~x~0#1 > 0; 122#L19 [2022-12-13 13:25:57,331 INFO L750 eck$LassoCheckResult]: Loop: 122#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 111#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 112#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 114#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 117#L18 assume main_~x~0#1 > 0; 122#L19 [2022-12-13 13:25:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2022-12-13 13:25:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857123771] [2022-12-13 13:25:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,340 INFO L85 PathProgramCache]: Analyzing trace with hash 46856793, now seen corresponding path program 1 times [2022-12-13 13:25:57,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788059935] [2022-12-13 13:25:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash 585781524, now seen corresponding path program 1 times [2022-12-13 13:25:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391081828] [2022-12-13 13:25:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,407 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:57,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:57,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:57,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:57,407 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:25:57,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:57,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:57,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2022-12-13 13:25:57,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:57,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:57,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:57,444 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:25:57,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 13:25:57,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:57,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:57,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 13:25:57,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,463 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 13:25:57,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:25:57,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:57,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:25:57,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 13:25:57,551 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:57,551 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:57,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:57,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:57,551 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:25:57,551 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,551 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:57,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:57,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2022-12-13 13:25:57,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:57,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:57,552 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,554 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:57,585 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:57,586 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:25:57,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 13:25:57,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:57,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:57,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:57,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:57,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:57,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:57,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:57,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:57,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:25:57,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:57,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 13:25:57,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:57,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:57,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:57,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:57,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:57,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:57,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:57,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:57,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:25:57,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 13:25:57,627 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 13:25:57,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:57,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,629 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 13:25:57,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:25:57,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 13:25:57,631 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:25:57,631 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2022-12-13 13:25:57,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 13:25:57,634 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 13:25:57,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:25:57,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,657 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:25:57,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:57,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 13:25:57,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 13:25:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,719 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-12-13 13:25:57,719 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 32 states and 48 transitions. Complement of second has 10 states. [2022-12-13 13:25:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-12-13 13:25:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-12-13 13:25:57,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 5 letters. [2022-12-13 13:25:57,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 9 letters. Loop has 5 letters. [2022-12-13 13:25:57,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 10 letters. [2022-12-13 13:25:57,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:57,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2022-12-13 13:25:57,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-12-13 13:25:57,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 48 transitions. [2022-12-13 13:25:57,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 13:25:57,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-12-13 13:25:57,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 48 transitions. [2022-12-13 13:25:57,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:57,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 48 transitions. [2022-12-13 13:25:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 48 transitions. [2022-12-13 13:25:57,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-12-13 13:25:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 42 transitions. [2022-12-13 13:25:57,790 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 42 transitions. [2022-12-13 13:25:57,790 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2022-12-13 13:25:57,790 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 13:25:57,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 42 transitions. [2022-12-13 13:25:57,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:57,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:57,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:57,791 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 13:25:57,791 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2022-12-13 13:25:57,791 INFO L748 eck$LassoCheckResult]: Stem: 228#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 229#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 233#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 236#L18 assume main_~x~0#1 > 0; 234#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 216#L19-4 [2022-12-13 13:25:57,791 INFO L750 eck$LassoCheckResult]: Loop: 216#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 225#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 221#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 222#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 235#L18 assume main_~x~0#1 > 0; 230#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 216#L19-4 [2022-12-13 13:25:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2022-12-13 13:25:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321978355] [2022-12-13 13:25:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:57,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321978355] [2022-12-13 13:25:57,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321978355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:57,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:57,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:57,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043737908] [2022-12-13 13:25:57,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:57,818 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 13:25:57,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1642865508, now seen corresponding path program 1 times [2022-12-13 13:25:57,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629085932] [2022-12-13 13:25:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:57,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629085932] [2022-12-13 13:25:57,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629085932] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:25:57,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186739606] [2022-12-13 13:25:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:25:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:57,846 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:25:57,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 13:25:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:57,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:25:57,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:25:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:57,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186739606] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:25:57,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:25:57,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-12-13 13:25:57,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479408554] [2022-12-13 13:25:57,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:25:57,905 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:57,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:57,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:57,906 INFO L87 Difference]: Start difference. First operand 27 states and 42 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:57,927 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2022-12-13 13:25:57,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-12-13 13:25:57,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:57,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 54 transitions. [2022-12-13 13:25:57,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-12-13 13:25:57,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-12-13 13:25:57,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 54 transitions. [2022-12-13 13:25:57,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:57,929 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 54 transitions. [2022-12-13 13:25:57,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 54 transitions. [2022-12-13 13:25:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2022-12-13 13:25:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2022-12-13 13:25:57,931 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 45 transitions. [2022-12-13 13:25:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:25:57,932 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 45 transitions. [2022-12-13 13:25:57,932 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 13:25:57,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 45 transitions. [2022-12-13 13:25:57,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:57,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:57,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:57,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 13:25:57,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 13:25:57,933 INFO L748 eck$LassoCheckResult]: Stem: 329#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 330#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 327#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 323#L18 assume main_~x~0#1 > 0; 324#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 317#L19-2 [2022-12-13 13:25:57,933 INFO L750 eck$LassoCheckResult]: Loop: 317#L19-2 assume !(main_~x~0#1 == main_~a~0#1);main_#t~nondet2#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_#t~nondet2#1 <= main_~x~0#1 && main_#t~nondet2#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 + main_~a~0#1; 319#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 340#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 339#L18 assume main_~x~0#1 > 0; 331#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 317#L19-2 [2022-12-13 13:25:57,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2022-12-13 13:25:57,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252850988] [2022-12-13 13:25:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,938 INFO L85 PathProgramCache]: Analyzing trace with hash 51579245, now seen corresponding path program 1 times [2022-12-13 13:25:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944294736] [2022-12-13 13:25:57,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:57,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 981205121, now seen corresponding path program 1 times [2022-12-13 13:25:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:57,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841435768] [2022-12-13 13:25:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:57,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:57,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:58,046 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:58,046 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:58,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:58,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:58,046 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:25:58,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:58,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:58,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2022-12-13 13:25:58,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:58,047 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:58,048 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,120 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 13:25:58,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:58,273 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:25:58,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,274 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 13:25:58,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:58,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:58,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,291 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 13:25:58,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:25:58,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:25:58,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~a~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~a~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_~a~0#1=-1}] Lambdas: [8, 1, 1] Nus: [1, 0] [2022-12-13 13:25:58,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 13:25:58,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,354 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 13:25:58,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:58,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,367 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:25:58,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:25:58,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 13:25:58,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,371 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 13:25:58,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:58,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,384 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:25:58,385 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:25:58,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 13:25:58,403 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:58,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:58,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:58,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:58,404 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:25:58,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:58,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:58,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2022-12-13 13:25:58,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:58,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:58,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,436 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,478 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 13:25:58,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:58,611 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:25:58,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,612 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 13:25:58,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:58,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 13:25:58,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:58,630 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:58,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 13:25:58,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:25:58,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:58,812 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:25:58,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:58,816 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:58,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:58,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:58,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:58,816 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:25:58,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:58,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:58,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:58,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2022-12-13 13:25:58,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:58,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:58,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:58,882 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-13 13:25:59,015 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:59,015 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:25:59,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,016 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 13:25:59,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:59,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:59,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:59,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:59,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:59,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:59,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:59,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:59,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:25:59,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 13:25:59,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,035 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 13:25:59,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:59,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:59,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:59,047 INFO L204 nArgumentSynthesizer]: 5 loop disjuncts [2022-12-13 13:25:59,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:59,091 INFO L401 nArgumentSynthesizer]: We have 70 Motzkin's Theorem applications. [2022-12-13 13:25:59,091 INFO L402 nArgumentSynthesizer]: A total of 10 supporting invariants were added. [2022-12-13 13:25:59,256 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:25:59,372 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2022-12-13 13:25:59,372 INFO L444 ModelExtractionUtils]: 17 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-12-13 13:25:59,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,373 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 13:25:59,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:25:59,392 INFO L438 nArgumentSynthesizer]: Removed 9 redundant supporting invariants from a total of 10. [2022-12-13 13:25:59,392 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:25:59,393 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [2*ULTIMATE.start_main_~a~0#1 - 1 >= 0] [2022-12-13 13:25:59,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 13:25:59,400 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-12-13 13:25:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:25:59,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:25:59,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,479 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-12-13 13:25:59,479 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 100 transitions. Complement of second has 8 states. [2022-12-13 13:25:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 1 non-accepting loop states 2 accepting loop states [2022-12-13 13:25:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2022-12-13 13:25:59,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 5 letters. Loop has 5 letters. [2022-12-13 13:25:59,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:59,527 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 13:25:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:25:59,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:25:59,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,603 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2022-12-13 13:25:59,603 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 45 transitions. cyclomatic complexity: 19. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 93 states and 133 transitions. Complement of second has 10 states. [2022-12-13 13:25:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2022-12-13 13:25:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2022-12-13 13:25:59,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 5 letters. [2022-12-13 13:25:59,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:59,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 10 letters. Loop has 5 letters. [2022-12-13 13:25:59,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:59,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 5 letters. Loop has 10 letters. [2022-12-13 13:25:59,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:25:59,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 133 transitions. [2022-12-13 13:25:59,656 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-12-13 13:25:59,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 83 states and 118 transitions. [2022-12-13 13:25:59,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-12-13 13:25:59,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-12-13 13:25:59,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 118 transitions. [2022-12-13 13:25:59,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:59,657 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 118 transitions. [2022-12-13 13:25:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 118 transitions. [2022-12-13 13:25:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 56. [2022-12-13 13:25:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5) internal successors, (84), 55 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2022-12-13 13:25:59,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 84 transitions. [2022-12-13 13:25:59,660 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 84 transitions. [2022-12-13 13:25:59,660 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 13:25:59,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 84 transitions. [2022-12-13 13:25:59,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 13:25:59,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:59,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:59,661 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:25:59,661 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2022-12-13 13:25:59,661 INFO L748 eck$LassoCheckResult]: Stem: 641#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 642#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 643#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 661#L18 assume main_~x~0#1 > 0; 659#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 654#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 630#L19-4 [2022-12-13 13:25:59,661 INFO L750 eck$LassoCheckResult]: Loop: 630#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 639#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 635#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 636#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 682#L18 assume main_~x~0#1 > 0; 647#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 630#L19-4 [2022-12-13 13:25:59,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash 889692489, now seen corresponding path program 1 times [2022-12-13 13:25:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:59,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251720446] [2022-12-13 13:25:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:59,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1642865508, now seen corresponding path program 2 times [2022-12-13 13:25:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:59,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026780922] [2022-12-13 13:25:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:59,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026780922] [2022-12-13 13:25:59,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026780922] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:25:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362029624] [2022-12-13 13:25:59,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:25:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:25:59,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,689 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 13:25:59,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:25:59,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:25:59,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:25:59,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:25:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:25:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362029624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:25:59,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:25:59,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-12-13 13:25:59,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472571708] [2022-12-13 13:25:59,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:25:59,737 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:59,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:59,738 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:59,763 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-12-13 13:25:59,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 60 transitions. [2022-12-13 13:25:59,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 13:25:59,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 33 states and 42 transitions. [2022-12-13 13:25:59,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-12-13 13:25:59,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-12-13 13:25:59,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2022-12-13 13:25:59,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:25:59,764 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-12-13 13:25:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2022-12-13 13:25:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-12-13 13:25:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-12-13 13:25:59,766 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-12-13 13:25:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:59,766 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-12-13 13:25:59,766 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 13:25:59,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2022-12-13 13:25:59,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 13:25:59,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:59,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:59,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:59,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 13:25:59,767 INFO L748 eck$LassoCheckResult]: Stem: 781#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 782#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 783#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 788#L18 assume main_~x~0#1 > 0; 787#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 770#L19-2 assume main_~x~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~x~0#1; 771#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 776#L18-2 [2022-12-13 13:25:59,767 INFO L750 eck$LassoCheckResult]: Loop: 776#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 775#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 776#L18-2 [2022-12-13 13:25:59,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663409, now seen corresponding path program 2 times [2022-12-13 13:25:59,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:59,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520872156] [2022-12-13 13:25:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:59,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 2 times [2022-12-13 13:25:59,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:59,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093075140] [2022-12-13 13:25:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:59,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:59,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:59,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:59,777 INFO L85 PathProgramCache]: Analyzing trace with hash 585781538, now seen corresponding path program 1 times [2022-12-13 13:25:59,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:59,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244768072] [2022-12-13 13:25:59,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:59,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:59,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:59,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244768072] [2022-12-13 13:25:59,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244768072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:59,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:59,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:59,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619652464] [2022-12-13 13:25:59,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:59,814 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:59,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:59,814 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:59,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:59,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:25:59,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:59,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:59,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2022-12-13 13:25:59,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:59,815 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:59,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,822 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:59,851 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:25:59,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,852 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 13:25:59,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:59,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:59,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:25:59,866 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:25:59,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 13:25:59,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,870 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 13:25:59,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:59,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:59,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:25:59,883 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:25:59,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 13:25:59,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,887 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 13:25:59,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:25:59,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:59,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 13:25:59,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,904 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 13:25:59,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:25:59,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:25:59,926 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:25:59,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 13:25:59,929 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:25:59,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:25:59,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:25:59,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:25:59,929 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:25:59,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:25:59,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:25:59,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2022-12-13 13:25:59,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:25:59,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:25:59,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,932 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,934 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:25:59,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:25:59,954 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:25:59,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,955 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 13:25:59,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:59,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:59,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:59,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:59,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:59,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:59,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:59,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:59,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:25:59,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 13:25:59,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,973 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 13:25:59,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:25:59,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:25:59,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:25:59,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:25:59,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:25:59,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:25:59,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:25:59,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:25:59,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:25:59,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 13:25:59,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:59,990 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:59,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 13:25:59,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:26:00,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:26:00,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:26:00,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:26:00,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:26:00,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:26:00,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:26:00,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:26:00,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:26:00,006 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 13:26:00,007 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 13:26:00,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,008 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 13:26:00,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:26:00,009 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 13:26:00,009 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:26:00,010 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 13:26:00,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 13:26:00,012 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 13:26:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,030 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:26:00,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 86 states and 111 transitions. Complement of second has 5 states. [2022-12-13 13:26:00,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:26:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-12-13 13:26:00,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 2 letters. [2022-12-13 13:26:00,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 9 letters. Loop has 2 letters. [2022-12-13 13:26:00,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2022-12-13 13:26:00,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 111 transitions. [2022-12-13 13:26:00,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 13:26:00,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 60 states and 79 transitions. [2022-12-13 13:26:00,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-12-13 13:26:00,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-12-13 13:26:00,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2022-12-13 13:26:00,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:26:00,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2022-12-13 13:26:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2022-12-13 13:26:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 31. [2022-12-13 13:26:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2022-12-13 13:26:00,053 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 41 transitions. [2022-12-13 13:26:00,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:26:00,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:26:00,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:26:00,054 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:26:00,068 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2022-12-13 13:26:00,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2022-12-13 13:26:00,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 13:26:00,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 34 states and 42 transitions. [2022-12-13 13:26:00,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-12-13 13:26:00,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 13:26:00,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 42 transitions. [2022-12-13 13:26:00,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:26:00,070 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-12-13 13:26:00,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 42 transitions. [2022-12-13 13:26:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-12-13 13:26:00,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2022-12-13 13:26:00,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-12-13 13:26:00,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:26:00,072 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-12-13 13:26:00,073 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-12-13 13:26:00,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2022-12-13 13:26:00,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-12-13 13:26:00,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:26:00,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:26:00,073 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 13:26:00,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 13:26:00,074 INFO L748 eck$LassoCheckResult]: Stem: 1016#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1017#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1018#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1024#L18 assume main_~x~0#1 > 0; 1023#L19 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1004#L19-2 assume !(main_~x~0#1 == main_~a~0#1);main_#t~nondet2#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_#t~nondet2#1 <= main_~x~0#1 && main_#t~nondet2#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 + main_~a~0#1; 1005#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1013#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1014#L18 assume main_~x~0#1 > 0; 1019#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 1020#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1010#L18-2 [2022-12-13 13:26:00,074 INFO L750 eck$LassoCheckResult]: Loop: 1010#L18-2 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1009#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1010#L18-2 [2022-12-13 13:26:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash 352587643, now seen corresponding path program 1 times [2022-12-13 13:26:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:26:00,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720449820] [2022-12-13 13:26:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:26:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:26:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:26:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720449820] [2022-12-13 13:26:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720449820] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:26:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665595844] [2022-12-13 13:26:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:26:00,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:26:00,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,113 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-12-13 13:26:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:26:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665595844] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:26:00,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:26:00,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-12-13 13:26:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757036851] [2022-12-13 13:26:00,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:26:00,174 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 13:26:00,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 3 times [2022-12-13 13:26:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:26:00,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14708416] [2022-12-13 13:26:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:26:00,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:26:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:26:00,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:26:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:26:00,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:26:00,191 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:26:00,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:26:00,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:26:00,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:26:00,192 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:26:00,192 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,192 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:26:00,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:26:00,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2022-12-13 13:26:00,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:26:00,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:26:00,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:26:00,218 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:26:00,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,219 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 13:26:00,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:26:00,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:26:00,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:26:00,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:26:00,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 13:26:00,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,236 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 13:26:00,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:26:00,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:26:00,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:26:00,249 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 13:26:00,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-12-13 13:26:00,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,252 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 13:26:00,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:26:00,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:26:00,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-12-13 13:26:00,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,268 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 13:26:00,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:26:00,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:26:00,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:26:00,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-12-13 13:26:00,292 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:26:00,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:26:00,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:26:00,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:26:00,293 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:26:00,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:26:00,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:26:00,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2022-12-13 13:26:00,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:26:00,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:26:00,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,296 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,300 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:26:00,319 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:26:00,319 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:26:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,320 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 13:26:00,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:26:00,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:26:00,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:26:00,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:26:00,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:26:00,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:26:00,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:26:00,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:26:00,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:26:00,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 13:26:00,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,338 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 13:26:00,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:26:00,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:26:00,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:26:00,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:26:00,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:26:00,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:26:00,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:26:00,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:26:00,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:26:00,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-12-13 13:26:00,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,354 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 13:26:00,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 13:26:00,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:26:00,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:26:00,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:26:00,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:26:00,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:26:00,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:26:00,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:26:00,369 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:26:00,372 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 13:26:00,372 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 13:26:00,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:26:00,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:26:00,373 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:26:00,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 13:26:00,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:26:00,375 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 13:26:00,375 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:26:00,375 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 13:26:00,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-12-13 13:26:00,378 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 13:26:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,400 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,402 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:26:00,402 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 76 states and 92 transitions. Complement of second has 5 states. [2022-12-13 13:26:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:26:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-12-13 13:26:00,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2022-12-13 13:26:00,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,412 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 13:26:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,435 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,437 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:26:00,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 76 states and 92 transitions. Complement of second has 5 states. [2022-12-13 13:26:00,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:26:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-12-13 13:26:00,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2022-12-13 13:26:00,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,447 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 13:26:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:26:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:26:00,470 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:26:00,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:26:00,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:26:00,471 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:26:00,472 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 58 states and 71 transitions. Complement of second has 4 states. [2022-12-13 13:26:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:26:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2022-12-13 13:26:00,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 2 letters. [2022-12-13 13:26:00,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 13 letters. Loop has 2 letters. [2022-12-13 13:26:00,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2022-12-13 13:26:00,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:26:00,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 71 transitions. [2022-12-13 13:26:00,487 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 13:26:00,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2022-12-13 13:26:00,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 13:26:00,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 13:26:00,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 13:26:00,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:26:00,488 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:26:00,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:26:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:26:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:26:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:26:00,488 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:26:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:26:00,488 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 13:26:00,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 13:26:00,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 13:26:00,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:26:00,489 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:26:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:26:00,490 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:26:00,490 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-12-13 13:26:00,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:26:00,490 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 13:26:00,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 13:26:00,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 01:26:00 BoogieIcfgContainer [2022-12-13 13:26:00,496 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 13:26:00,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:26:00,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:26:00,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:26:00,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:56" (3/4) ... [2022-12-13 13:26:00,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:26:00,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:26:00,500 INFO L158 Benchmark]: Toolchain (without parser) took 4312.97ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 82.5MB in the beginning and 42.5MB in the end (delta: 40.0MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-12-13 13:26:00,501 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:26:00,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.69ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 73.1MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:26:00,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.51ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:26:00,501 INFO L158 Benchmark]: Boogie Preprocessor took 19.84ms. Allocated memory is still 113.2MB. Free memory was 71.8MB in the beginning and 70.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:26:00,502 INFO L158 Benchmark]: RCFGBuilder took 187.11ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 61.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:26:00,502 INFO L158 Benchmark]: BuchiAutomizer took 3923.20ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 61.9MB in the beginning and 42.5MB in the end (delta: 19.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-12-13 13:26:00,502 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 153.1MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:26:00,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.69ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 73.1MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.51ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.84ms. Allocated memory is still 113.2MB. Free memory was 71.8MB in the beginning and 70.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.11ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 61.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3923.20ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 61.9MB in the beginning and 42.5MB in the end (delta: 19.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 153.1MB. Free memory is still 42.5MB. 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 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 7 locations. One deterministic module has affine ranking function -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * x and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 77 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 142 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 93 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp92 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf95 smp81 dnf351 smp77 tf108 neg95 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 358ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 5 SupportingInvariants: 10 MotzkinApplications: 70 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 13:26:00,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 13:26:00,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-12-13 13:26:00,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-12-13 13:26:01,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 13:26:01,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 13:26:01,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af48ed41-d650-40ee-887d-832ffe111621/bin/uautomizer-uyxdKDjOR8/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