./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0218.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0 --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 d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:40:33,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:40:33,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:40:34,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:40:34,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:40:34,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:40:34,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:40:34,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:40:34,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:40:34,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:40:34,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:40:34,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:40:34,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:40:34,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:40:34,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:40:34,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:40:34,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:40:34,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:40:34,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:40:34,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:40:34,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:40:34,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:40:34,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:40:34,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:40:34,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:40:34,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:40:34,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:40:34,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:40:34,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:40:34,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:40:34,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:40:34,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:40:34,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:40:34,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:40:34,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:40:34,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:40:34,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:40:34,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:40:34,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:40:34,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:40:34,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:40:34,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-22 14:40:34,135 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:40:34,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:40:34,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:40:34,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:40:34,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:40:34,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:40:34,137 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:40:34,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 14:40:34,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 14:40:34,137 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 14:40:34,137 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 14:40:34,138 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 14:40:34,138 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 14:40:34,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:40:34,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:40:34,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 14:40:34,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 14:40:34,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:40:34,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:40:34,140 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 14:40:34,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:40:34,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 14:40:34,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:40:34,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:40:34,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:40:34,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:40:34,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:40:34,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 14:40:34,142 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_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 [2021-11-22 14:40:34,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:40:34,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:40:34,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:40:34,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:40:34,432 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:40:34,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/memsafety/test-0218.i [2021-11-22 14:40:34,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/data/e726fe737/10e3475b907f4a9bbcf50b688c432a94/FLAG9d71c4b47 [2021-11-22 14:40:35,126 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:40:35,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/sv-benchmarks/c/memsafety/test-0218.i [2021-11-22 14:40:35,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/data/e726fe737/10e3475b907f4a9bbcf50b688c432a94/FLAG9d71c4b47 [2021-11-22 14:40:35,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/data/e726fe737/10e3475b907f4a9bbcf50b688c432a94 [2021-11-22 14:40:35,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:40:35,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:40:35,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:40:35,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:40:35,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:40:35,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:35" (1/1) ... [2021-11-22 14:40:35,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ffea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:35, skipping insertion in model container [2021-11-22 14:40:35,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:35" (1/1) ... [2021-11-22 14:40:35,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:40:35,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:40:35,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:40:35,951 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:40:36,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:40:36,077 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:40:36,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36 WrapperNode [2021-11-22 14:40:36,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:40:36,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:40:36,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:40:36,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:40:36,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,142 INFO L137 Inliner]: procedures = 181, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 200 [2021-11-22 14:40:36,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:40:36,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:40:36,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:40:36,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:40:36,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:40:36,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:40:36,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:40:36,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:40:36,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (1/1) ... [2021-11-22 14:40:36,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:40:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:36,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:40:36,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 14:40:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-22 14:40:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-22 14:40:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:40:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:40:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:40:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:40:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:40:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:40:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:40:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:40:36,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:40:36,440 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:40:36,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:40:36,445 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 14:40:36,906 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:40:36,913 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:40:36,914 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-22 14:40:36,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:36 BoogieIcfgContainer [2021-11-22 14:40:36,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:40:36,917 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 14:40:36,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 14:40:36,923 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 14:40:36,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:40:36,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 02:40:35" (1/3) ... [2021-11-22 14:40:36,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4876b089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:40:36, skipping insertion in model container [2021-11-22 14:40:36,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:40:36,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:36" (2/3) ... [2021-11-22 14:40:36,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4876b089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:40:36, skipping insertion in model container [2021-11-22 14:40:36,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:40:36,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:36" (3/3) ... [2021-11-22 14:40:36,927 INFO L388 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2021-11-22 14:40:36,989 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 14:40:36,989 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 14:40:36,990 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 14:40:36,990 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 14:40:36,990 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 14:40:36,990 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 14:40:36,990 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 14:40:36,990 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 14:40:37,019 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) [2021-11-22 14:40:37,042 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-11-22 14:40:37,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:40:37,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:40:37,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 14:40:37,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 14:40:37,048 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 14:40:37,049 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) [2021-11-22 14:40:37,053 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-11-22 14:40:37,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:40:37,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:40:37,054 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 14:40:37,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 14:40:37,061 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);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); 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_#t~nondet30#1, main_#t~ret33#1, main_#t~nondet32#1, main_#t~nondet29#1, main_#t~nondet34#1, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_#t~mem36#1.base, main_#t~mem36#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 8#L726-2true [2021-11-22 14:40:37,061 INFO L793 eck$LassoCheckResult]: Loop: 8#L726-2true assume !!(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1; 11#L724-2true assume !true; 14#L726-1true assume !true; 8#L726-2true [2021-11-22 14:40:37,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:37,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2021-11-22 14:40:37,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:37,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994609649] [2021-11-22 14:40:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:37,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,194 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:40:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:40:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2021-11-22 14:40:37,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:37,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51269620] [2021-11-22 14:40:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:37,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:37,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:37,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51269620] [2021-11-22 14:40:37,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51269620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:40:37,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:40:37,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:40:37,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490403571] [2021-11-22 14:40:37,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:40:37,316 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-22 14:40:37,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:40:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:40:37,359 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) [2021-11-22 14:40:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:37,378 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2021-11-22 14:40:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:40:37,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2021-11-22 14:40:37,396 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-11-22 14:40:37,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2021-11-22 14:40:37,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2021-11-22 14:40:37,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-11-22 14:40:37,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-11-22 14:40:37,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:40:37,412 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-11-22 14:40:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-11-22 14:40:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-22 14:40:37,443 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) [2021-11-22 14:40:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2021-11-22 14:40:37,449 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-11-22 14:40:37,449 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-11-22 14:40:37,449 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 14:40:37,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2021-11-22 14:40:37,455 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2021-11-22 14:40:37,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:40:37,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:40:37,457 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 14:40:37,457 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 14:40:37,457 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_#t~nondet30#1, main_#t~ret33#1, main_#t~nondet32#1, main_#t~nondet29#1, main_#t~nondet34#1, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_#t~mem36#1.base, main_#t~mem36#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 129#L726-2 [2021-11-22 14:40:37,457 INFO L793 eck$LassoCheckResult]: Loop: 129#L726-2 assume !!(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1; 131#L724-2 assume !(0 != main_#t~nondet30#1);havoc main_#t~nondet30#1; 140#L726-1 assume !(0 != main_#t~nondet32#1);havoc main_#t~nondet32#1; 129#L726-2 [2021-11-22 14:40:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2021-11-22 14:40:37,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:37,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178047011] [2021-11-22 14:40:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:37,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,488 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:40:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:40:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2021-11-22 14:40:37,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:37,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038425096] [2021-11-22 14:40:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:37,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:40:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:40:37,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:37,537 INFO L85 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2021-11-22 14:40:37,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870914449] [2021-11-22 14:40:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:37,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,556 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:40:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:40:37,581 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:40:37,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 02:40:37 BoogieIcfgContainer [2021-11-22 14:40:37,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 14:40:37,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:40:37,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:40:37,867 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:40:37,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:36" (3/4) ... [2021-11-22 14:40:37,870 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-22 14:40:37,910 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:40:37,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:40:37,912 INFO L158 Benchmark]: Toolchain (without parser) took 2517.19ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 55.1MB in the beginning and 74.0MB in the end (delta: -18.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,912 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:40:37,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.65ms. Allocated memory is still 98.6MB. Free memory was 54.9MB in the beginning and 61.5MB in the end (delta: -6.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.87ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 58.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,918 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,919 INFO L158 Benchmark]: RCFGBuilder took 732.93ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 37.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,920 INFO L158 Benchmark]: BuchiAutomizer took 949.14ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 37.9MB in the beginning and 75.4MB in the end (delta: -37.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:40:37,920 INFO L158 Benchmark]: Witness Printer took 44.19ms. Allocated memory is still 136.3MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:40:37,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.65ms. Allocated memory is still 98.6MB. Free memory was 54.9MB in the beginning and 61.5MB in the end (delta: -6.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.87ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 58.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.93ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 37.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 949.14ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 37.9MB in the beginning and 75.4MB in the end (delta: -37.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 44.19ms. Allocated memory is still 136.3MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). 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 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 0.8s and 2 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 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: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 72 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 723]: 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 {next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@3a5857aa=0, NULL=0, next=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@3a5857aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@11b67f4b=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@11b67f4b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5adcfe04=0, NULL=0, list=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463dfd35=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701d3ff=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a49d21f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8f6e04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7addf618=5, cursor=0, direction=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 723]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L722] static list_t list; Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 14:40:37,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfca17f2-74ea-482f-b8dd-ddeaa734bd42/bin/uautomizer-w2VwFs6gM0/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)