./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0217.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0217.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD --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 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec ................................................................................................................................................................................................................................................................................................................................................. 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 22:57:33,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:57:33,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:57:33,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:57:33,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:57:33,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:57:33,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:57:33,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:57:33,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:57:33,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:57:33,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:57:33,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:57:33,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:57:33,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:57:33,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:57:33,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:57:33,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:57:33,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:57:33,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:57:33,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:57:33,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:57:33,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:57:33,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:57:33,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:57:33,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:57:33,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:57:33,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:57:33,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:57:33,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:57:33,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:57:33,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:57:33,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:57:33,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:57:33,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:57:33,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:57:33,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:57:33,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:57:33,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:57:33,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:57:33,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:57:33,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:57:33,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:57:33,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:57:33,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:57:33,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:57:33,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:57:33,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:57:33,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:57:33,137 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:57:33,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:57:33,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:57:33,138 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:57:33,138 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:57:33,138 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:57:33,138 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:57:33,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:57:33,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:57:33,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:57:33,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:57:33,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:57:33,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:57:33,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:57:33,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:57:33,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:57:33,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:57:33,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:57:33,141 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:57:33,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:57:33,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:57:33,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:57:33,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:57:33,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:57:33,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:57:33,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:57:33,144 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:57:33,144 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_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec [2021-10-28 22:57:33,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:57:33,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:57:33,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:57:33,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:57:33,525 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:57:33,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0217.i [2021-10-28 22:57:33,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/data/ef6e2e6b0/9164d47737ea493fb816caac049d0413/FLAG0d5e73d6b [2021-10-28 22:57:34,268 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:57:34,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/sv-benchmarks/c/memsafety/test-0217.i [2021-10-28 22:57:34,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/data/ef6e2e6b0/9164d47737ea493fb816caac049d0413/FLAG0d5e73d6b [2021-10-28 22:57:34,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/data/ef6e2e6b0/9164d47737ea493fb816caac049d0413 [2021-10-28 22:57:34,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:57:34,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:57:34,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:57:34,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:57:34,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:57:34,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:57:34" (1/1) ... [2021-10-28 22:57:34,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704ff276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:34, skipping insertion in model container [2021-10-28 22:57:34,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:57:34" (1/1) ... [2021-10-28 22:57:34,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:57:34,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:57:35,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:57:35,136 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:57:35,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:57:35,229 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:57:35,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35 WrapperNode [2021-10-28 22:57:35,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:57:35,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:57:35,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:57:35,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:57:35,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:57:35,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:57:35,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:57:35,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:57:35,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:57:35,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:57:35,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:57:35,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:57:35,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (1/1) ... [2021-10-28 22:57:35,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:57:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:57:35,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:57:35,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:57:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:57:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 22:57:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 22:57:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:57:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 22:57:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:57:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 22:57:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:57:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 22:57:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:57:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:57:35,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:57:35,653 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 22:57:36,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:57:36,087 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-28 22:57:36,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:57:36 BoogieIcfgContainer [2021-10-28 22:57:36,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:57:36,090 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:57:36,090 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:57:36,094 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:57:36,095 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:57:36,107 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:57:34" (1/3) ... [2021-10-28 22:57:36,108 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17510608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:57:36, skipping insertion in model container [2021-10-28 22:57:36,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:57:36,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:57:35" (2/3) ... [2021-10-28 22:57:36,109 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17510608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:57:36, skipping insertion in model container [2021-10-28 22:57:36,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:57:36,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:57:36" (3/3) ... [2021-10-28 22:57:36,111 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0217.i [2021-10-28 22:57:36,162 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:57:36,162 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:57:36,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:57:36,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:57:36,163 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:57:36,163 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:57:36,163 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:57:36,164 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:57:36,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 22:57:36,204 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-28 22:57:36,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:57:36,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:57:36,211 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:57:36,211 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:57:36,211 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:57:36,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 22:57:36,241 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-28 22:57:36,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:57:36,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:57:36,242 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:57:36,242 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:57:36,249 INFO L791 eck$LassoCheckResult]: Stem: 41#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); 28#L-1true havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 30#L732-2true [2021-10-28 22:57:36,251 INFO L793 eck$LassoCheckResult]: Loop: 30#L732-2true assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 40#L730-2true assume !true; 48#L732-1true assume !true; 30#L732-2true [2021-10-28 22:57:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2021-10-28 22:57:36,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:36,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681277819] [2021-10-28 22:57:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:36,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2021-10-28 22:57:36,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:36,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284962659] [2021-10-28 22:57:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:36,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:36,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:57:36,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284962659] [2021-10-28 22:57:36,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284962659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:57:36,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:57:36,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:57:36,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349423291] [2021-10-28 22:57:36,489 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:57:36,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:57:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:57:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:57:36,508 INFO L87 Difference]: Start difference. First operand has 52 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 22:57:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:36,519 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2021-10-28 22:57:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:57:36,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2021-10-28 22:57:36,524 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-28 22:57:36,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2021-10-28 22:57:36,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2021-10-28 22:57:36,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-10-28 22:57:36,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-10-28 22:57:36,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:57:36,533 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-28 22:57:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-10-28 22:57:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-28 22:57:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.434782608695652) internal successors, (66), 45 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 22:57:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2021-10-28 22:57:36,568 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-28 22:57:36,568 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-10-28 22:57:36,568 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:57:36,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2021-10-28 22:57:36,570 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-10-28 22:57:36,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:57:36,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:57:36,570 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:57:36,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:57:36,571 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 116#L-1 havoc main_#res;havoc main_#t~ret33, main_#t~nondet32, main_#t~ret35, main_#t~nondet34, main_#t~nondet31, main_#t~nondet36, main_#t~mem37.base, main_#t~mem37.offset, main_#t~mem38.base, main_#t~mem38.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 117#L732-2 [2021-10-28 22:57:36,571 INFO L793 eck$LassoCheckResult]: Loop: 117#L732-2 assume !!(0 != main_#t~nondet31);havoc main_#t~nondet31; 122#L730-2 assume !(0 != main_#t~nondet32);havoc main_#t~nondet32; 147#L732-1 assume !(0 != main_#t~nondet34);havoc main_#t~nondet34; 117#L732-2 [2021-10-28 22:57:36,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:36,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2021-10-28 22:57:36,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:36,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033279039] [2021-10-28 22:57:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:36,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2021-10-28 22:57:36,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:36,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692368333] [2021-10-28 22:57:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:36,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2021-10-28 22:57:36,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:36,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795968924] [2021-10-28 22:57:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:36,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,672 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:36,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:37,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:57:37 BoogieIcfgContainer [2021-10-28 22:57:37,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:57:37,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:57:37,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:57:37,195 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:57:37,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:57:36" (3/4) ... [2021-10-28 22:57:37,198 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 22:57:37,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:57:37,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:57:37,228 INFO L168 Benchmark]: Toolchain (without parser) took 2704.74 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 61.5 MB in the beginning and 63.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,228 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 79.8 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:57:37,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.81 ms. Allocated memory is still 104.9 MB. Free memory was 61.2 MB in the beginning and 66.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.15 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 64.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,230 INFO L168 Benchmark]: Boogie Preprocessor took 39.61 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,231 INFO L168 Benchmark]: RCFGBuilder took 759.07 ms. Allocated memory is still 104.9 MB. Free memory was 61.9 MB in the beginning and 42.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,232 INFO L168 Benchmark]: BuchiAutomizer took 1104.39 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 42.4 MB in the beginning and 65.0 MB in the end (delta: -22.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,232 INFO L168 Benchmark]: Witness Printer took 31.04 ms. Allocated memory is still 127.9 MB. Free memory was 65.0 MB in the beginning and 63.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:37,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 79.8 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.81 ms. Allocated memory is still 104.9 MB. Free memory was 61.2 MB in the beginning and 66.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.15 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 64.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.61 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 759.07 ms. Allocated memory is still 104.9 MB. Free memory was 61.9 MB in the beginning and 42.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1104.39 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 42.4 MB in the beginning and 65.0 MB in the end (delta: -22.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 31.04 ms. Allocated memory is still 127.9 MB. Free memory was 65.0 MB in the beginning and 63.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. 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 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s 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 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 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: 729]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2655} State at position 1 is {cursor=0, NULL=0, NULL=2657, \result=0, NULL=2655, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12e12921=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@708dd0a5=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@9b5c6fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@9b5c6fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@32681e0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e75225=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b079d45=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3066892a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b993382=0, end_point=0, NULL=2656, NULL=0, list=2658, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@32681e0c=0, next=0, next=0, cursor=0, direction=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 729]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L728] static list_t list; Loop: [L729] COND TRUE __VERIFIER_nondet_int() [L730] COND FALSE !(__VERIFIER_nondet_int()) [L732] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:57:37,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0826158-7ec7-4130-b7b0-51b1578b4c40/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...