./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Flip.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Flip.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY --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 d9e2051c5b6571a6a73804cb724a9fb9a88e5e404b5e850e3a8c166e2eba4aad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:22:55,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:22:55,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:22:55,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:22:55,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:22:55,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:22:55,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:22:55,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:22:55,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:22:55,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:22:55,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:22:55,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:22:55,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:22:55,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:22:55,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:22:55,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:22:55,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:22:55,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:22:55,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:22:55,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:22:55,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:22:55,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:22:55,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:22:55,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:22:55,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:22:55,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:22:55,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:22:55,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:22:55,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:22:55,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:22:55,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:22:55,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:22:55,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:22:55,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:22:55,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:22:55,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:22:55,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:22:55,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:22:55,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:22:55,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:22:55,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:22:55,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 08:22:55,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:22:55,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:22:55,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:22:55,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:22:55,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:22:55,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:22:55,221 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:22:55,222 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:22:55,222 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:22:55,222 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:22:55,223 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:22:55,223 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:22:55,223 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:22:55,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:22:55,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:22:55,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:22:55,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:22:55,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:22:55,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:22:55,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:22:55,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:22:55,226 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:22:55,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:22:55,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:22:55,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:22:55,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:22:55,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:22:55,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:22:55,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:22:55,230 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:22:55,230 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_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9e2051c5b6571a6a73804cb724a9fb9a88e5e404b5e850e3a8c166e2eba4aad [2021-11-07 08:22:55,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:22:55,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:22:55,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:22:55,604 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:22:55,605 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:22:55,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-restricted-15/Flip.c [2021-11-07 08:22:55,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/data/73090861f/8b584454ebcf46389212ebbff924a861/FLAG836e2bac4 [2021-11-07 08:22:56,322 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:22:56,322 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/sv-benchmarks/c/termination-restricted-15/Flip.c [2021-11-07 08:22:56,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/data/73090861f/8b584454ebcf46389212ebbff924a861/FLAG836e2bac4 [2021-11-07 08:22:56,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/data/73090861f/8b584454ebcf46389212ebbff924a861 [2021-11-07 08:22:56,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:22:56,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:22:56,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:22:56,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:22:56,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:22:56,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:56" (1/1) ... [2021-11-07 08:22:56,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc71892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:56, skipping insertion in model container [2021-11-07 08:22:56,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:56" (1/1) ... [2021-11-07 08:22:56,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:22:56,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:22:56,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:22:56,981 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:22:57,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:22:57,041 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:22:57,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57 WrapperNode [2021-11-07 08:22:57,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:22:57,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:22:57,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:22:57,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:22:57,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:22:57,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:22:57,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:22:57,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:22:57,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:22:57,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:22:57,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:22:57,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:22:57,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (1/1) ... [2021-11-07 08:22:57,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:57,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:57,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:57,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:22:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:22:57,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:22:57,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:22:57,414 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 08:22:57,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:57 BoogieIcfgContainer [2021-11-07 08:22:57,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:22:57,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:22:57,418 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:22:57,423 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:22:57,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:57,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:22:56" (1/3) ... [2021-11-07 08:22:57,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16afdfbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:22:57, skipping insertion in model container [2021-11-07 08:22:57,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:57,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:57" (2/3) ... [2021-11-07 08:22:57,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16afdfbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:22:57, skipping insertion in model container [2021-11-07 08:22:57,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:22:57,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:57" (3/3) ... [2021-11-07 08:22:57,429 INFO L389 chiAutomizerObserver]: Analyzing ICFG Flip.c [2021-11-07 08:22:57,488 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:22:57,488 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:22:57,488 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:22:57,488 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:22:57,489 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:22:57,489 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:22:57,489 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:22:57,489 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:22:57,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:22:57,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:22:57,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:22:57,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:22:57,551 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-07 08:22:57,551 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:22:57,552 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:22:57,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:22:57,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:22:57,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:22:57,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:22:57,557 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-07 08:22:57,557 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:22:57,568 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; 5#L13-2true [2021-11-07 08:22:57,568 INFO L793 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; 5#L13-2true [2021-11-07 08:22:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:57,581 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-11-07 08:22:57,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:57,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929077277] [2021-11-07 08:22:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:57,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,718 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:22:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:22:57,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-11-07 08:22:57,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:57,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058067447] [2021-11-07 08:22:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:57,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:22:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:22:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-11-07 08:22:57,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:57,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427092512] [2021-11-07 08:22:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:57,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,837 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:22:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:22:57,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:22:58,060 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:22:58,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:22:58,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:22:58,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:22:58,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:22:58,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:22:58,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:22:58,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: Flip.c_Iteration1_Lasso [2021-11-07 08:22:58,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:22:58,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:22:58,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:22:58,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:22:58,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:22:58,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:22:58,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:58,526 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:22:58,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:58,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:22:58,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:58,603 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: [] [2021-11-07 08:22:58,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:58,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:22:58,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:58,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:22:58,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:58,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:22:58,757 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:58,758 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:22:58,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-07 08:22:58,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,789 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:22:58,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:58,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:58,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:58,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:58,882 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:58,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:22:58,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:58,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:22:59,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:59,198 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~j~0=-1, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=-1, ULTIMATE.start_main_~i~0=0}] Lambdas: [15, 12, 0] Nus: [1, 0] [2021-11-07 08:22:59,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:59,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:22:59,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:22:59,248 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:22:59,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:22:59,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:22:59,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:22:59,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:22:59,290 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: [] [2021-11-07 08:22:59,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:22:59,350 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,353 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,353 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:22:59 BoogieIcfgContainer [2021-11-07 08:22:59,367 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:22:59,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:22:59,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:22:59,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:22:59,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:57" (3/4) ... [2021-11-07 08:22:59,373 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-07 08:22:59,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:22:59,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:22:59,423 INFO L168 Benchmark]: Toolchain (without parser) took 2708.76 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 69.7 MB in the end (delta: -18.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:59,423 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.2 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:22:59,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.08 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 51.1 MB in the beginning and 86.9 MB in the end (delta: -35.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:59,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.14 ms. Allocated memory is still 109.1 MB. Free memory was 86.9 MB in the beginning and 85.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:22:59,426 INFO L168 Benchmark]: Boogie Preprocessor took 27.16 ms. Allocated memory is still 109.1 MB. Free memory was 85.6 MB in the beginning and 84.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:22:59,427 INFO L168 Benchmark]: RCFGBuilder took 299.36 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 77.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:59,428 INFO L168 Benchmark]: BuchiAutomizer took 1949.35 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 71.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:59,428 INFO L168 Benchmark]: Witness Printer took 52.48 ms. Allocated memory is still 109.1 MB. Free memory was 71.3 MB in the beginning and 69.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:22:59,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.2 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.08 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 51.1 MB in the beginning and 86.9 MB in the end (delta: -35.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.14 ms. Allocated memory is still 109.1 MB. Free memory was 86.9 MB in the beginning and 85.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.16 ms. Allocated memory is still 109.1 MB. Free memory was 85.6 MB in the beginning and 84.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 299.36 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 77.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1949.35 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 71.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Witness Printer took 52.48 ms. Allocated memory is still 109.1 MB. Free memory was 71.3 MB in the beginning and 69.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax161 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq214 hnf93 smp100 dnf276 smp100 tf100 neg93 sie114 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. [2021-11-07 08:22:59,443 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,445 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,446 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,446 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2021-11-07 08:22:59,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2021-11-07 08:22:59,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f4b966=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69bf7468=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f4b966=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69bf7468=0, ~unnamed0~0~true=1, ~unnamed0~0~false=0, i=-1, j=-1} For i>1, the state at position i is {t=0 + sum_{k=0}^i -1*0^k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f4b966=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69bf7468=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=-1 + sum_{k=0}^i 0, j=-1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [15, 12, 0] Mus: [1, 0] - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-07 08:22:59,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d65dc49-6ea6-458b-8799-222493495c28/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)