./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg --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 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:50:49,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:50:49,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:50:49,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:50:49,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:50:49,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:50:49,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:50:49,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:50:49,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:50:49,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:50:49,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:50:49,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:50:49,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:50:49,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:50:49,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:50:49,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:50:49,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:50:49,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:50:49,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:50:49,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:50:49,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:50:49,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:50:49,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:50:49,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:50:49,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:50:49,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:50:49,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:50:49,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:50:49,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:50:49,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:50:49,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:50:49,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:50:49,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:50:49,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:50:49,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:50:49,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:50:49,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:50:49,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:50:49,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:50:49,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:50:49,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:50:49,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:50:49,252 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:50:49,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:50:49,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:50:49,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:50:49,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:50:49,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:50:49,262 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:50:49,263 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:50:49,263 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:50:49,263 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:50:49,265 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:50:49,265 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:50:49,266 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:50:49,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:50:49,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:50:49,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:50:49,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:50:49,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:50:49,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:50:49,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:50:49,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:50:49,268 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:50:49,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:50:49,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:50:49,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:50:49,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:50:49,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:50:49,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:50:49,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:50:49,274 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:50:49,275 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_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c [2021-10-28 09:50:49,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:50:49,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:50:49,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:50:49,642 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:50:49,643 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:50:49,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-10-28 09:50:49,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/data/9a1f5ccd1/083ddfbc69fb41adb6daf230ae545ebe/FLAG392835f0c [2021-10-28 09:50:50,243 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:50:50,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-10-28 09:50:50,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/data/9a1f5ccd1/083ddfbc69fb41adb6daf230ae545ebe/FLAG392835f0c [2021-10-28 09:50:50,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/data/9a1f5ccd1/083ddfbc69fb41adb6daf230ae545ebe [2021-10-28 09:50:50,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:50:50,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:50:50,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:50:50,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:50:50,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:50:50,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d64dd5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50, skipping insertion in model container [2021-10-28 09:50:50,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:50:50,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:50:50,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:50:50,797 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:50:50,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:50:50,829 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:50:50,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50 WrapperNode [2021-10-28 09:50:50,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:50:50,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:50:50,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:50:50,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:50:50,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:50:50,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:50:50,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:50:50,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:50:50,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:50:50,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:50:50,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:50:50,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:50:50,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (1/1) ... [2021-10-28 09:50:50,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:50,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:50,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:50,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:50:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:50:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:50:51,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:50:51,158 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:50:51,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:50:51 BoogieIcfgContainer [2021-10-28 09:50:51,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:50:51,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:50:51,162 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:50:51,166 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:50:51,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:50:51,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:50:50" (1/3) ... [2021-10-28 09:50:51,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@613e8059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:50:51, skipping insertion in model container [2021-10-28 09:50:51,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:50:51,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:50:50" (2/3) ... [2021-10-28 09:50:51,170 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@613e8059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:50:51, skipping insertion in model container [2021-10-28 09:50:51,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:50:51,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:50:51" (3/3) ... [2021-10-28 09:50:51,172 INFO L389 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2021-10-28 09:50:51,230 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:50:51,230 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:50:51,230 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:50:51,230 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:50:51,230 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:50:51,231 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:50:51,231 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:50:51,231 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:50:51,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:50:51,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:50:51,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:50:51,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:50:51,277 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:50:51,277 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:50:51,277 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:50:51,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:50:51,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:50:51,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:50:51,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:50:51,281 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:50:51,281 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:50:51,290 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~d1~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d2~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L18true assume !!(-1048575 <= main_~x~0 && main_~x~0 <= 1048575); 9#L19true assume !!(-1048575 <= main_~d1~0 && main_~d1~0 <= 1048575); 10#L20true assume !!(-1048575 <= main_~d2~0 && main_~d2~0 <= 1048575); 8#L21-2true [2021-10-28 09:50:51,290 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L21-2true [2021-10-28 09:50:51,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:51,305 INFO L85 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2021-10-28 09:50:51,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:50:51,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846405922] [2021-10-28 09:50:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:51,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:50:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:50:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:50:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-10-28 09:50:51,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:50:51,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437944451] [2021-10-28 09:50:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:51,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:50:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,556 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:50:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:50:51,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:51,581 INFO L85 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2021-10-28 09:50:51,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:50:51,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358200623] [2021-10-28 09:50:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:51,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:50:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:50:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:50:51,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:50:51,842 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:50:51,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:50:51,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:50:51,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:50:51,843 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:50:51,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:51,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:50:51,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:50:51,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-10-28 09:50:51,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:50:51,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:50:51,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:51,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:51,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:52,087 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:50:52,088 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:50:52,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:52,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:52,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:52,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:50:52,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:50:52,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:50:52,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:50:52,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:50:52,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:52,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:52,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:52,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:52,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:50:52,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:50:52,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:50:52,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:50:52,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:50:52,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 09:50:52,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:52,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:52,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:52,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:50:52,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:50:52,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:50:52,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:52,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:52,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:52,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:52,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:50:52,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:50:52,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:50:54,964 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:50:54,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 09:50:54,969 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:50:54,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:50:54,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:50:54,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:50:54,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:50:54,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:54,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:50:54,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:50:54,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-10-28 09:50:54,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:50:54,971 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:50:54,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:55,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:55,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:50:55,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:50:55,083 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:50:55,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:50:55,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:50:55,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:50:55,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:50:55,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:50:55,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,245 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:50:55,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:50:55,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:50:55,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:50:55,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,329 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:50:55,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:50:55,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:50:55,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:50:55,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,423 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:50:55,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,424 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:50:55,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:50:55,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,438 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:50:55,442 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:50:55,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:50:55,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,520 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:50:55,525 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 09:50:55,525 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 09:50:55,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:50:55,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:50:55,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,606 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:50:55,611 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 09:50:55,611 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 09:50:55,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:50:55,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,651 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:50:55,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,653 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:50:55,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:50:55,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:50:55,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:50:55,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:50:55,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:50:55,667 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:50:55,675 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:50:55,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:50:55,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:50:55,710 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:50:55,710 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:50:55,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:50:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:50:55,714 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,739 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:50:55,739 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:50:55,739 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:50:55,740 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0 - 1*ULTIMATE.start_main_~d2~0 f1 = 2*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~d1~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-28 09:50:55,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:50:55,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:55,784 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:50:55,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:55,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:50:55,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:55,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:50:55,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:50:55,914 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:50:55,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-10-28 09:50:55,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) Result 21 states and 26 transitions. Complement of second has 5 states. [2021-10-28 09:50:55,973 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 [2021-10-28 09:50:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-10-28 09:50:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 09:50:55,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-28 09:50:55,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:50:55,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-28 09:50:55,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:50:55,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:50:55,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:50:55,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-10-28 09:50:56,000 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:50:56,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-10-28 09:50:56,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:50:56,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:50:56,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:50:56,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:50:56,008 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:50:56,008 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:50:56,008 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:50:56,008 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:50:56,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:50:56,009 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:50:56,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:50:56,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:50:56 BoogieIcfgContainer [2021-10-28 09:50:56,016 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:50:56,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:50:56,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:50:56,017 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:50:56,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:50:51" (3/4) ... [2021-10-28 09:50:56,022 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:50:56,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:50:56,025 INFO L168 Benchmark]: Toolchain (without parser) took 5408.80 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 68.3 MB in the beginning and 55.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:50:56,026 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:50:56,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.69 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 59.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:50:56,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 90.2 MB. Free memory was 59.5 MB in the beginning and 58.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:50:56,037 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 57.4 MB in the end (delta: 880.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:50:56,037 INFO L168 Benchmark]: RCFGBuilder took 269.65 ms. Allocated memory is still 90.2 MB. Free memory was 57.2 MB in the beginning and 49.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:50:56,038 INFO L168 Benchmark]: BuchiAutomizer took 4854.53 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 49.3 MB in the beginning and 55.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:50:56,039 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 119.5 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:50:56,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.69 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 59.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 90.2 MB. Free memory was 59.5 MB in the beginning and 58.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 57.4 MB in the end (delta: 880.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.65 ms. Allocated memory is still 90.2 MB. Free memory was 57.2 MB in the beginning and 49.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4854.53 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 49.3 MB in the beginning and 55.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 119.5 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:50:56,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:56,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62901aa0-b8f2-4c25-81bf-ba25a1b1aed3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...