./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0214.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0214.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e76e236e7c6eecafb820553e8dd0e4568ba0003d .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:12:18,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:12:18,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:12:18,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:12:18,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:12:18,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:12:18,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:12:18,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:12:18,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:12:18,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:12:18,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:12:18,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:12:18,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:12:18,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:12:18,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:12:18,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:12:18,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:12:18,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:12:18,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:12:18,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:12:18,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:12:18,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:12:18,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:12:18,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:12:18,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:12:18,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:12:18,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:12:18,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:12:18,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:12:18,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:12:18,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:12:18,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:12:18,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:12:18,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:12:18,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:12:18,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:12:18,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:12:18,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:12:18,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:12:18,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:12:18,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:12:18,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:12:18,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:12:18,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:12:18,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:12:18,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:12:18,352 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:12:18,353 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:12:18,353 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:12:18,353 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:12:18,354 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:12:18,354 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:12:18,355 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:12:18,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:12:18,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:12:18,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:12:18,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:12:18,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:12:18,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:12:18,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:12:18,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:12:18,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:12:18,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:12:18,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:12:18,359 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:12:18,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:12:18,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:12:18,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:12:18,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:12:18,360 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:12:18,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:12:18,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:12:18,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:12:18,362 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:12:18,363 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:12:18,363 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-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e76e236e7c6eecafb820553e8dd0e4568ba0003d [2020-11-28 03:12:18,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:12:18,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:12:18,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:12:18,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:12:18,702 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:12:18,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0214.i [2020-11-28 03:12:18,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/data/342a4a3d9/5339f4763cc2410281cb4f1dbdcfb59c/FLAG3d1252961 [2020-11-28 03:12:19,484 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:12:19,485 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/sv-benchmarks/c/memsafety/test-0214.i [2020-11-28 03:12:19,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/data/342a4a3d9/5339f4763cc2410281cb4f1dbdcfb59c/FLAG3d1252961 [2020-11-28 03:12:19,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/data/342a4a3d9/5339f4763cc2410281cb4f1dbdcfb59c [2020-11-28 03:12:19,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:12:19,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:12:19,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:19,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:12:19,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:12:19,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:19" (1/1) ... [2020-11-28 03:12:19,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c82934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:19, skipping insertion in model container [2020-11-28 03:12:19,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:19" (1/1) ... [2020-11-28 03:12:19,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:12:19,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:12:20,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:20,344 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:12:20,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:20,522 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:12:20,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20 WrapperNode [2020-11-28 03:12:20,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:20,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:20,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:12:20,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:12:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:20,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:12:20,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:12:20,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:12:20,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... [2020-11-28 03:12:20,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:12:20,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:12:20,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:12:20,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:12:20,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:12:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-28 03:12:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-28 03:12:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 03:12:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:12:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:12:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:12:20,970 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:12:21,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:12:21,611 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-28 03:12:21,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:21 BoogieIcfgContainer [2020-11-28 03:12:21,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:12:21,614 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:12:21,615 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:12:21,622 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:12:21,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:21,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:12:19" (1/3) ... [2020-11-28 03:12:21,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e70e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:12:21, skipping insertion in model container [2020-11-28 03:12:21,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:21,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:20" (2/3) ... [2020-11-28 03:12:21,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e70e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:12:21, skipping insertion in model container [2020-11-28 03:12:21,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:21,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:21" (3/3) ... [2020-11-28 03:12:21,629 INFO L373 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2020-11-28 03:12:21,711 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:12:21,712 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:12:21,712 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:12:21,712 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:12:21,712 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:12:21,712 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:12:21,712 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:12:21,713 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:12:21,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2020-11-28 03:12:21,751 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2020-11-28 03:12:21,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:12:21,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:12:21,760 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:12:21,760 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:12:21,760 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:12:21,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2020-11-28 03:12:21,765 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2020-11-28 03:12:21,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:12:21,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:12:21,766 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:12:21,766 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:12:21,774 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 15#L-1true havoc main_#res;havoc main_#t~ret25, main_#t~nondet24, main_#t~ret27, main_#t~nondet26, main_#t~nondet23, main_#t~nondet28, main_#t~mem29.base, main_#t~mem29.offset, main_#t~mem30.base, main_#t~mem30.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 37#L728-2true [2020-11-28 03:12:21,775 INFO L796 eck$LassoCheckResult]: Loop: 37#L728-2true assume !!(0 != main_#t~nondet23);havoc main_#t~nondet23; 16#L726-2true assume !true; 34#L728-1true assume !true; 37#L728-2true [2020-11-28 03:12:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:21,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2020-11-28 03:12:21,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:21,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113465415] [2020-11-28 03:12:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:21,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:21,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:21,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:21,956 INFO L82 PathProgramCache]: Analyzing trace with hash 51626, now seen corresponding path program 1 times [2020-11-28 03:12:21,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:21,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067135432] [2020-11-28 03:12:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:12:21,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067135432] [2020-11-28 03:12:21,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:21,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:21,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363322233] [2020-11-28 03:12:22,004 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:12:22,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:22,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:12:22,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:12:22,026 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-11-28 03:12:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:22,038 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2020-11-28 03:12:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:12:22,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2020-11-28 03:12:22,044 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2020-11-28 03:12:22,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 42 states and 59 transitions. [2020-11-28 03:12:22,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-11-28 03:12:22,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-28 03:12:22,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2020-11-28 03:12:22,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:12:22,054 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2020-11-28 03:12:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2020-11-28 03:12:22,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-28 03:12:22,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-28 03:12:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2020-11-28 03:12:22,090 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2020-11-28 03:12:22,090 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2020-11-28 03:12:22,090 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:12:22,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2020-11-28 03:12:22,092 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2020-11-28 03:12:22,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:12:22,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:12:22,093 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:12:22,093 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:12:22,093 INFO L794 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 119#L-1 havoc main_#res;havoc main_#t~ret25, main_#t~nondet24, main_#t~ret27, main_#t~nondet26, main_#t~nondet23, main_#t~nondet28, main_#t~mem29.base, main_#t~mem29.offset, main_#t~mem30.base, main_#t~mem30.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 120#L728-2 [2020-11-28 03:12:22,094 INFO L796 eck$LassoCheckResult]: Loop: 120#L728-2 assume !!(0 != main_#t~nondet23);havoc main_#t~nondet23; 121#L726-2 assume !(0 != main_#t~nondet24);havoc main_#t~nondet24; 122#L728-1 assume !(0 != main_#t~nondet26);havoc main_#t~nondet26; 120#L728-2 [2020-11-28 03:12:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:22,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2020-11-28 03:12:22,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:22,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254812171] [2020-11-28 03:12:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:22,137 INFO L82 PathProgramCache]: Analyzing trace with hash 49935, now seen corresponding path program 1 times [2020-11-28 03:12:22,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:22,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109156380] [2020-11-28 03:12:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,152 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash 37288685, now seen corresponding path program 1 times [2020-11-28 03:12:22,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:22,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361651573] [2020-11-28 03:12:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:22,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:22,193 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:22,538 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-11-28 03:12:22,662 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-28 03:12:22,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:12:22 BoogieIcfgContainer [2020-11-28 03:12:22,698 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:12:22,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:22,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:22,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:22,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:21" (3/4) ... [2020-11-28 03:12:22,704 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 03:12:22,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f42e927c-2243-48f4-acbf-f2ebb7eb3640/bin/uautomizer/witness.graphml [2020-11-28 03:12:22,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:22,748 INFO L168 Benchmark]: Toolchain (without parser) took 3028.86 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 51.6 MB in the beginning and 71.9 MB in the end (delta: -20.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,749 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 69.7 MB in the end (delta: 151.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:22,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.80 ms. Allocated memory is still 107.0 MB. Free memory was 51.5 MB in the beginning and 60.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.35 ms. Allocated memory is still 107.0 MB. Free memory was 60.5 MB in the beginning and 57.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,752 INFO L168 Benchmark]: Boogie Preprocessor took 70.34 ms. Allocated memory is still 107.0 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,753 INFO L168 Benchmark]: RCFGBuilder took 947.55 ms. Allocated memory is still 107.0 MB. Free memory was 55.8 MB in the beginning and 65.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,754 INFO L168 Benchmark]: BuchiAutomizer took 1084.29 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 65.6 MB in the beginning and 72.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:22,755 INFO L168 Benchmark]: Witness Printer took 47.37 ms. Allocated memory is still 130.0 MB. Free memory was 72.8 MB in the beginning and 71.9 MB in the end (delta: 942.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:22,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 69.7 MB in the end (delta: 151.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 796.80 ms. Allocated memory is still 107.0 MB. Free memory was 51.5 MB in the beginning and 60.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.35 ms. Allocated memory is still 107.0 MB. Free memory was 60.5 MB in the beginning and 57.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.34 ms. Allocated memory is still 107.0 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 947.55 ms. Allocated memory is still 107.0 MB. Free memory was 55.8 MB in the beginning and 65.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1084.29 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 65.6 MB in the beginning and 72.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 47.37 ms. Allocated memory is still 130.0 MB. Free memory was 72.8 MB in the beginning and 71.9 MB in the end (delta: 942.9 kB). 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 42 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 63 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=720} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6632861a=0, NULL=0, NULL=722, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73e7d429=0, NULL=720, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@24bcf4cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7bfd345f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7bfd345f=0, list=0, NULL=0, NULL=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@24bcf4cb=0, NULL=723, NULL=0, list=721, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e905aa3=0, next=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@738a5fcd=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@132a61f2=0, cursor=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d005466=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 725]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L724] static list_t list; Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...