./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efd89e7b390064d688e1eebb599a77ec99587f4751caf8bf660f2bf53e476dd2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:25:18,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:25:18,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:25:18,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:25:18,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:25:18,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:25:18,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:25:18,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:25:18,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:25:18,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:25:18,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:25:18,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:25:18,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:25:18,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:25:18,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:25:18,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:25:18,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:25:18,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:25:18,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:25:18,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:25:18,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:25:18,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:25:18,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:25:18,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:25:18,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:25:18,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:25:18,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:25:18,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:25:18,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:25:18,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:25:18,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:25:18,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:25:18,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:25:18,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:25:18,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:25:18,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:25:18,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:25:18,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:25:18,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:25:18,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:25:18,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:25:18,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-19 05:25:18,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:25:18,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:25:18,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:25:18,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:25:18,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:25:18,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:25:18,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:25:18,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:25:18,498 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:25:18,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:25:18,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:25:18,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:25:18,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:25:18,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:25:18,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:25:18,501 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:25:18,501 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:25:18,501 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:25:18,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:25:18,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:25:18,502 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:25:18,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:25:18,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:25:18,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:25:18,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:25:18,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:25:18,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:25:18,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:25:18,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:25:18,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:25:18,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:25:18,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efd89e7b390064d688e1eebb599a77ec99587f4751caf8bf660f2bf53e476dd2 [2021-11-19 05:25:18,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:25:18,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:25:18,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:25:18,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:25:18,895 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:25:18,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memsetNonZero.c [2021-11-19 05:25:18,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/data/2a7ac470c/0e24d12a487c4b9f9c84a6a9f2a8ba56/FLAGc6715a824 [2021-11-19 05:25:19,523 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:25:19,523 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/sv-benchmarks/c/ldv-memsafety/memsetNonZero.c [2021-11-19 05:25:19,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/data/2a7ac470c/0e24d12a487c4b9f9c84a6a9f2a8ba56/FLAGc6715a824 [2021-11-19 05:25:19,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/data/2a7ac470c/0e24d12a487c4b9f9c84a6a9f2a8ba56 [2021-11-19 05:25:19,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:25:19,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:25:19,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:25:19,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:25:19,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:25:19,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:19" (1/1) ... [2021-11-19 05:25:19,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322e2e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:19, skipping insertion in model container [2021-11-19 05:25:19,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:19" (1/1) ... [2021-11-19 05:25:19,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:25:19,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:25:20,045 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:25:20,053 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:25:20,067 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:25:20,081 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:25:20,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20 WrapperNode [2021-11-19 05:25:20,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:25:20,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:25:20,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:25:20,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:25:20,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:25:20,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:25:20,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:25:20,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:25:20,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (1/1) ... [2021-11-19 05:25:20,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:25:20,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:25:20,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:25:20,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:25:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 05:25:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:25:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 05:25:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 05:25:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 05:25:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:25:20,253 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:25:20,254 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:25:20,301 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 05:25:20,342 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:25:20,349 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:25:20,366 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:25:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:20 BoogieIcfgContainer [2021-11-19 05:25:20,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:25:20,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:25:20,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:25:20,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:25:20,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:25:19" (1/3) ... [2021-11-19 05:25:20,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7100439d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:20, skipping insertion in model container [2021-11-19 05:25:20,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:20" (2/3) ... [2021-11-19 05:25:20,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7100439d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:20, skipping insertion in model container [2021-11-19 05:25:20,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:20" (3/3) ... [2021-11-19 05:25:20,390 INFO L111 eAbstractionObserver]: Analyzing ICFG memsetNonZero.c [2021-11-19 05:25:20,395 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:25:20,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 05:25:20,468 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:25:20,482 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:25:20,483 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 05:25:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 05:25:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 05:25:20,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:25:20,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:25:20,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-11-19 05:25:20,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:25:20,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2021-11-19 05:25:20,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:25:20,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732175963] [2021-11-19 05:25:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:25:20,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:25:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:20,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-19 05:25:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:25:20,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:25:20,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732175963] [2021-11-19 05:25:20,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732175963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:25:20,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:25:20,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:25:20,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113287955] [2021-11-19 05:25:20,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:25:20,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:25:20,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:25:20,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:25:20,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:25:20,834 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:25:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:25:20,931 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-11-19 05:25:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 05:25:20,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-19 05:25:20,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:25:20,946 INFO L225 Difference]: With dead ends: 19 [2021-11-19 05:25:20,947 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 05:25:20,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:25:20,956 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:25:20,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:25:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 05:25:20,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 05:25:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 05:25:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-19 05:25:20,996 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-11-19 05:25:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:25:20,997 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-19 05:25:20,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:25:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-19 05:25:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 05:25:20,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:25:20,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:25:20,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:25:20,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-11-19 05:25:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:25:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2021-11-19 05:25:21,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:25:21,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837740107] [2021-11-19 05:25:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:25:21,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:25:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-19 05:25:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:25:21,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:25:21,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837740107] [2021-11-19 05:25:21,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837740107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:25:21,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:25:21,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:25:21,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464750592] [2021-11-19 05:25:21,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:25:21,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:25:21,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:25:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:25:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:25:21,134 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:25:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:25:21,181 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-19 05:25:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 05:25:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-19 05:25:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:25:21,183 INFO L225 Difference]: With dead ends: 15 [2021-11-19 05:25:21,184 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 05:25:21,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:25:21,191 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:25:21,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 20 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:25:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 05:25:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 05:25:21,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 05:25:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-19 05:25:21,203 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2021-11-19 05:25:21,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:25:21,203 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-19 05:25:21,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:25:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-19 05:25:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 05:25:21,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:25:21,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:25:21,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:25:21,211 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-11-19 05:25:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:25:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1462327129, now seen corresponding path program 1 times [2021-11-19 05:25:21,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:25:21,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471317925] [2021-11-19 05:25:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:25:21,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:25:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-19 05:25:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:25:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:25:21,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:25:21,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471317925] [2021-11-19 05:25:21,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471317925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:25:21,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:25:21,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 05:25:21,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297162526] [2021-11-19 05:25:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:25:21,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:25:21,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:25:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:25:21,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:25:21,499 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:25:21,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:25:21,625 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-19 05:25:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:25:21,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2021-11-19 05:25:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:25:21,628 INFO L225 Difference]: With dead ends: 18 [2021-11-19 05:25:21,628 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 05:25:21,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:25:21,630 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:25:21,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 24 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:25:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 05:25:21,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 05:25:21,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 05:25:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-19 05:25:21,640 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-11-19 05:25:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:25:21,640 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-19 05:25:21,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:25:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-19 05:25:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 05:25:21,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:25:21,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:25:21,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:25:21,644 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] === [2021-11-19 05:25:21,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:25:21,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1971150090, now seen corresponding path program 1 times [2021-11-19 05:25:21,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:25:21,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865929146] [2021-11-19 05:25:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:25:21,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:25:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-19 05:25:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-19 05:25:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:25:21,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:25:21,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865929146] [2021-11-19 05:25:21,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865929146] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:25:21,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381896215] [2021-11-19 05:25:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:25:21,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:25:21,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:25:21,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:25:21,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:25:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:25:21,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:25:21,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:25:22,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-19 05:25:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 05:25:22,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:25:22,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381896215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:25:22,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:25:22,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-11-19 05:25:22,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270891391] [2021-11-19 05:25:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:25:22,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:25:22,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:25:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:25:22,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:25:22,304 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 05:25:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:25:22,333 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-19 05:25:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:25:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2021-11-19 05:25:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:25:22,334 INFO L225 Difference]: With dead ends: 15 [2021-11-19 05:25:22,334 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 05:25:22,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-19 05:25:22,336 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:25:22,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2021-11-19 05:25:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 05:25:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 05:25:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-19 05:25:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 05:25:22,338 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-19 05:25:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:25:22,338 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 05:25:22,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 05:25:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 05:25:22,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 05:25:22,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION (2 of 3 remaining) [2021-11-19 05:25:22,342 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION (1 of 3 remaining) [2021-11-19 05:25:22,342 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2021-11-19 05:25:22,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:25:22,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:25:22,568 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-19 05:25:22,570 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:25:22,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:25:22 BoogieIcfgContainer [2021-11-19 05:25:22,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:25:22,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:25:22,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:25:22,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:25:22,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:20" (3/4) ... [2021-11-19 05:25:22,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 05:25:22,584 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-11-19 05:25:22,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-11-19 05:25:22,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-11-19 05:25:22,595 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-19 05:25:22,596 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-19 05:25:22,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:25:22,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:25:22,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:25:22,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:25:22,635 INFO L158 Benchmark]: Toolchain (without parser) took 2751.22ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 39.4MB in the end (delta: 41.7MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,636 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 54.3MB in the beginning and 54.3MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:25:22,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.92ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 72.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,637 INFO L158 Benchmark]: Boogie Preprocessor took 28.67ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,637 INFO L158 Benchmark]: RCFGBuilder took 269.06ms. Allocated memory is still 107.0MB. Free memory was 70.7MB in the beginning and 61.4MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,637 INFO L158 Benchmark]: TraceAbstraction took 2190.98ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 41.5MB in the end (delta: 19.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,638 INFO L158 Benchmark]: Witness Printer took 60.92ms. Allocated memory is still 107.0MB. Free memory was 41.5MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:25:22,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 54.3MB in the beginning and 54.3MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.92ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 72.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.67ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 269.06ms. Allocated memory is still 107.0MB. Free memory was 70.7MB in the beginning and 61.4MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2190.98ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 41.5MB in the end (delta: 19.4MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 60.92ms. Allocated memory is still 107.0MB. Free memory was 41.5MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 20 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 50 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 7 QuantifiedInterpolants, 241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-19 05:25:22,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_739e6f7b-7c3e-4337-aec3-91bf12d8e6b5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE