./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd ................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-b2eff8b [2021-10-28 09:02:57,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:57,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:57,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:57,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:57,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:57,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:57,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:57,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:57,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:57,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:57,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:57,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:57,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:57,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:57,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:57,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:57,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:57,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:57,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:57,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:57,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:57,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:57,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:57,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:57,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:57,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:57,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:57,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:57,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:57,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:57,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:57,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:58,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:58,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:58,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:58,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:58,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:58,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:58,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:58,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:58,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:02:58,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:58,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:58,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:58,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:58,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:58,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:58,084 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:58,085 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:02:58,085 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:02:58,085 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:02:58,087 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:02:58,087 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:02:58,087 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:02:58,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:58,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:02:58,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:02:58,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:58,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:02:58,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:02:58,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:02:58,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:58,090 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:02:58,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:58,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:02:58,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:58,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:58,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:58,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:02:58,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:58,095 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:02:58,095 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_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2021-10-28 09:02:58,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:58,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:58,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:58,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:58,484 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:58,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-10-28 09:02:58,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/data/c6b7ee0e7/5cd4fec0df724b059e93696bddf4c17c/FLAG0cb1afe13 [2021-10-28 09:02:59,269 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:59,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-10-28 09:02:59,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/data/c6b7ee0e7/5cd4fec0df724b059e93696bddf4c17c/FLAG0cb1afe13 [2021-10-28 09:02:59,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/data/c6b7ee0e7/5cd4fec0df724b059e93696bddf4c17c [2021-10-28 09:02:59,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:59,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:59,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:59,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:59,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:59,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c18914b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59, skipping insertion in model container [2021-10-28 09:02:59,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:59,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:03:00,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:00,129 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:03:00,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:00,234 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:03:00,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00 WrapperNode [2021-10-28 09:03:00,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:03:00,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:00,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:03:00,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:03:00,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:00,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:03:00,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:03:00,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:03:00,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:03:00,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:03:00,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:03:00,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:03:00,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (1/1) ... [2021-10-28 09:03:00,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:00,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:00,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:00,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:03:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:03:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:03:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:03:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:03:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:03:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:03:00,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:03:00,690 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:03:00,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:00 BoogieIcfgContainer [2021-10-28 09:03:00,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:03:00,694 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:03:00,694 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:03:00,698 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:03:00,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:00,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:02:59" (1/3) ... [2021-10-28 09:03:00,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741a79e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:00, skipping insertion in model container [2021-10-28 09:03:00,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:00,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:00" (2/3) ... [2021-10-28 09:03:00,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@741a79e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:00, skipping insertion in model container [2021-10-28 09:03:00,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:00,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:00" (3/3) ... [2021-10-28 09:03:00,704 INFO L389 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2021-10-28 09:03:00,759 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:03:00,759 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:03:00,760 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:03:00,760 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:03:00,760 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:03:00,760 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:03:00,760 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:03:00,761 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:03:00,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:00,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:03:00,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:00,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:00,809 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:03:00,809 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:00,809 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:03:00,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:00,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:03:00,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:00,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:00,813 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:03:00,813 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:00,822 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 7#L549-2true [2021-10-28 09:03:00,822 INFO L793 eck$LassoCheckResult]: Loop: 7#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 10#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 7#L549-2true [2021-10-28 09:03:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:00,830 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:03:00,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:00,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757434958] [2021-10-28 09:03:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:00,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:00,982 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:01,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2021-10-28 09:03:01,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:01,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921797399] [2021-10-28 09:03:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:01,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:01,058 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:01,071 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:01,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-28 09:03:01,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:01,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363165571] [2021-10-28 09:03:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:01,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:01,100 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:01,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:01,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:03:01 BoogieIcfgContainer [2021-10-28 09:03:01,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:03:01,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:03:01,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:03:01,526 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:03:01,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:00" (3/4) ... [2021-10-28 09:03:01,530 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:03:01,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:03:01,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:03:01,578 INFO L168 Benchmark]: Toolchain (without parser) took 2008.00 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 62.1 MB in the beginning and 106.4 MB in the end (delta: -44.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:01,581 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 79.4 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:01,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.16 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 70.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:01,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.16 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 69.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:01,593 INFO L168 Benchmark]: Boogie Preprocessor took 58.04 ms. Allocated memory is still 100.7 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:01,594 INFO L168 Benchmark]: RCFGBuilder took 330.71 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 59.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:01,595 INFO L168 Benchmark]: BuchiAutomizer took 831.39 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 59.3 MB in the beginning and 107.5 MB in the end (delta: -48.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:01,595 INFO L168 Benchmark]: Witness Printer took 48.28 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 106.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:01,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 79.4 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 660.16 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 70.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.16 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 69.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.04 ms. Allocated memory is still 100.7 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 330.71 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 59.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 831.39 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 59.3 MB in the beginning and 107.5 MB in the end (delta: -48.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 48.28 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 106.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 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: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2e7b6b2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d830eba=2, NULL=0, NULL=0, x=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d830eba=0, x=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@721632b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@72196b74=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:03:01,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_675dbcf8-c8d3-414f-80bf-05a3b1545cdb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...