./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/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_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R --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 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:35:31,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:35:31,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:35:31,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:35:31,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:35:31,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:35:31,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:35:31,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:35:31,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:35:31,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:35:31,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:35:31,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:35:31,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:35:31,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:35:31,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:35:31,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:35:31,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:35:31,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:35:31,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:35:31,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:35:31,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:35:31,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:35:31,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:35:31,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:35:31,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:35:31,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:35:31,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:35:31,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:35:31,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:35:31,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:35:31,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:35:31,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:35:31,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:35:31,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:35:31,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:35:31,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:35:31,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:35:31,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:35:31,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:35:31,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:35:31,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:35:31,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 18:35:31,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:35:31,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:35:31,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:35:31,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:35:31,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:35:31,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:35:31,308 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:35:31,308 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 18:35:31,309 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 18:35:31,309 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 18:35:31,310 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 18:35:31,311 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 18:35:31,311 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 18:35:31,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:35:31,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:35:31,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:35:31,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:35:31,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 18:35:31,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 18:35:31,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 18:35:31,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:35:31,315 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 18:35:31,315 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:35:31,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 18:35:31,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:35:31,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:35:31,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:35:31,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:35:31,319 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 18:35:31,320 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_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2022-11-25 18:35:31,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:35:31,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:35:31,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:35:31,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:35:31,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:35:31,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-11-25 18:35:35,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:35:35,360 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:35:35,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-11-25 18:35:35,387 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/data/67df5bed4/e32ae906a4af4246968cc9aa6a445295/FLAGc7ce3d42d [2022-11-25 18:35:35,401 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/data/67df5bed4/e32ae906a4af4246968cc9aa6a445295 [2022-11-25 18:35:35,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:35:35,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:35:35,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:35:35,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:35:35,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:35:35,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac083de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35, skipping insertion in model container [2022-11-25 18:35:35,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:35:35,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:35:35,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:35:35,742 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:35:35,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:35:35,804 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:35:35,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35 WrapperNode [2022-11-25 18:35:35,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:35:35,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:35:35,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:35:35,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:35:35,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,842 INFO L138 Inliner]: procedures = 109, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-25 18:35:35,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:35:35,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:35:35,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:35:35,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:35:35,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,864 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:35:35,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:35:35,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:35:35,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:35:35,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (1/1) ... [2022-11-25 18:35:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:35:35,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:35:35,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:35:35,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 18:35:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:35:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:35:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:35:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:35:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:35:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:35:36,082 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:35:36,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:35:36,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:35:36,190 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:35:36,190 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:35:36,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:35:36 BoogieIcfgContainer [2022-11-25 18:35:36,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:35:36,193 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 18:35:36,194 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 18:35:36,198 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 18:35:36,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:35:36,199 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 06:35:35" (1/3) ... [2022-11-25 18:35:36,200 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fed4a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:35:36, skipping insertion in model container [2022-11-25 18:35:36,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:35:36,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:35" (2/3) ... [2022-11-25 18:35:36,201 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fed4a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:35:36, skipping insertion in model container [2022-11-25 18:35:36,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:35:36,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:35:36" (3/3) ... [2022-11-25 18:35:36,202 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2022-11-25 18:35:36,275 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 18:35:36,275 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 18:35:36,275 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 18:35:36,275 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 18:35:36,275 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 18:35:36,276 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 18:35:36,276 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 18:35:36,276 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 18:35:36,297 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) [2022-11-25 18:35:36,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-25 18:35:36,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:35:36,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:35:36,337 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 18:35:36,337 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:35:36,338 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 18:35:36,338 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) [2022-11-25 18:35:36,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-25 18:35:36,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:35:36,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:35:36,340 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 18:35:36,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 18:35:36,352 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~mem4#1, main_#t~mem5#1, main_#t~mem3#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset; 6#L549-2true [2022-11-25 18:35:36,367 INFO L750 eck$LassoCheckResult]: Loop: 6#L549-2true call main_#t~mem3#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L548-1true assume !!(main_#t~mem3#1 <= 10);havoc main_#t~mem3#1;call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 7#L549true assume !(main_#t~mem4#1 > 6);havoc main_#t~mem4#1; 6#L549-2true [2022-11-25 18:35:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 18:35:36,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:36,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759114956] [2022-11-25 18:35:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:36,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:35:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:35:36,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2022-11-25 18:35:36,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:36,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118523771] [2022-11-25 18:35:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:36,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:35:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:35:36,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-11-25 18:35:36,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:36,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874704404] [2022-11-25 18:35:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:35:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:35:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:35:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:35:36,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 06:35:36 BoogieIcfgContainer [2022-11-25 18:35:36,994 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 18:35:36,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:35:36,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:35:36,995 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:35:36,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:35:36" (3/4) ... [2022-11-25 18:35:36,999 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 18:35:37,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:35:37,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:35:37,039 INFO L158 Benchmark]: Toolchain (without parser) took 1632.24ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 65.6MB in the end (delta: 58.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-25 18:35:37,039 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 80.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:35:37,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.81ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 108.0MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:35:37,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.48ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 106.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:35:37,041 INFO L158 Benchmark]: Boogie Preprocessor took 23.57ms. Allocated memory is still 163.6MB. Free memory was 106.7MB in the beginning and 105.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:35:37,042 INFO L158 Benchmark]: RCFGBuilder took 324.66ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 95.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:35:37,043 INFO L158 Benchmark]: BuchiAutomizer took 800.63ms. Allocated memory is still 163.6MB. Free memory was 95.5MB in the beginning and 66.9MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 18:35:37,043 INFO L158 Benchmark]: Witness Printer took 41.89ms. Allocated memory is still 163.6MB. Free memory was 66.9MB in the beginning and 65.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:35:37,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 80.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.81ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 108.0MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.48ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 106.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.57ms. Allocated memory is still 163.6MB. Free memory was 106.7MB in the beginning and 105.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.66ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 95.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 800.63ms. Allocated memory is still 163.6MB. Free memory was 95.5MB in the beginning and 66.9MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 41.89ms. Allocated memory is still 163.6MB. Free memory was 66.9MB in the beginning and 65.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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: 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); VAL [__builtin_alloca (sizeof(int))={2:0}, x={2:0}] Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. - 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)); VAL [__builtin_alloca (sizeof(int))={2:0}, x={2:0}] 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! [2022-11-25 18:35:37,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68acf279-94ba-4ef9-ac04-052869047ed7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)