./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD --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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD --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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:53:54,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:53:54,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:53:54,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:53:54,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:53:54,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:53:54,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:53:54,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:53:54,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:53:55,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:53:55,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:53:55,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:53:55,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:53:55,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:53:55,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:53:55,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:53:55,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:53:55,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:53:55,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:53:55,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:53:55,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:53:55,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:53:55,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:53:55,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:53:55,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:53:55,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:53:55,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:53:55,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:53:55,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:53:55,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:53:55,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:53:55,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:53:55,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:53:55,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:53:55,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:53:55,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:53:55,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:53:55,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:53:55,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:53:55,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:53:55,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:53:55,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:53:55,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:53:55,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:53:55,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:53:55,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:53:55,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:53:55,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:53:55,159 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:53:55,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:53:55,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:53:55,160 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:53:55,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:53:55,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:53:55,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:53:55,162 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:53:55,163 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:53:55,163 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:53:55,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:53:55,163 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:53:55,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:53:55,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:53:55,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:53:55,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:53:55,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:53:55,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:53:55,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:53:55,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:53:55,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:53:55,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:53:55,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:53:55,169 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_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2021-10-28 23:53:55,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:53:55,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:53:55,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:53:55,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:53:55,581 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:53:55,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-28 23:53:55,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/bf497f25a/1dfa59daf5414621a8d8fc035c562a70/FLAG2f3ff0d58 [2021-10-28 23:53:56,427 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:53:56,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-28 23:53:56,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/bf497f25a/1dfa59daf5414621a8d8fc035c562a70/FLAG2f3ff0d58 [2021-10-28 23:53:56,701 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/bf497f25a/1dfa59daf5414621a8d8fc035c562a70 [2021-10-28 23:53:56,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:53:56,706 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:53:56,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:56,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:53:56,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:53:56,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:56" (1/1) ... [2021-10-28 23:53:56,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d0c5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:56, skipping insertion in model container [2021-10-28 23:53:56,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:56" (1/1) ... [2021-10-28 23:53:56,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:53:56,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:53:57,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:57,220 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:53:57,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:57,354 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:53:57,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57 WrapperNode [2021-10-28 23:53:57,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:57,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:53:57,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:53:57,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:53:57,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:53:57,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:53:57,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:53:57,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:53:57,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (1/1) ... [2021-10-28 23:53:57,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:53:57,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:57,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:57,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:53:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:53:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:53:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:53:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:53:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:53:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:53:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:53:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:53:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:53:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:53:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:53:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:53:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:53:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:53:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:53:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:53:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:53:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:53:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:53:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:53:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:53:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:53:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:53:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:53:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:53:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:53:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:53:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:53:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:53:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:53:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:53:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:53:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:53:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:53:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:53:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:53:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:53:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:53:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:53:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:53:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:53:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:53:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:53:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:53:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:53:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:53:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:53:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:53:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:53:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:53:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:53:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:53:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:53:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:53:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:53:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:53:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:53:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:53:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:53:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:53:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:53:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:53:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:53:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:53:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:53:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:53:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:53:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:53:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:53:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:53:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:53:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:53:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:53:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:53:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:53:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:53:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:53:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:53:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:53:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:53:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:53:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:53:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:53:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:53:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:53:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:53:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:53:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:53:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:53:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:53:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:53:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:53:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:53:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:53:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:53:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:53:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:53:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:53:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:53:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:53:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:53:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:53:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:53:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:53:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:53:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:53:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:53:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:53:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:53:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:53:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:53:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:53:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:53:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:53:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:53:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:53:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:53:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:53:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:53:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:53:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:53:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:53:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:53:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:53:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:53:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:53:58,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:53:58,123 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 23:53:58,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:58 BoogieIcfgContainer [2021-10-28 23:53:58,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:53:58,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:53:58,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:53:58,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:53:58,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:53:56" (1/3) ... [2021-10-28 23:53:58,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e539716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:53:58, skipping insertion in model container [2021-10-28 23:53:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:57" (2/3) ... [2021-10-28 23:53:58,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e539716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:53:58, skipping insertion in model container [2021-10-28 23:53:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:58" (3/3) ... [2021-10-28 23:53:58,173 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-28 23:53:58,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:53:58,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 23:53:58,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:53:58,275 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 [2021-10-28 23:53:58,276 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:53:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:53:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:53:58,308 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:58,308 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:58,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:53:58,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -280547993, now seen corresponding path program 1 times [2021-10-28 23:53:58,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:58,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675823586] [2021-10-28 23:53:58,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:58,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:58,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:53:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:58,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:58,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675823586] [2021-10-28 23:53:58,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675823586] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:58,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:58,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:58,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075178962] [2021-10-28 23:53:58,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:53:58,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:58,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:53:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:53:58,782 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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) [2021-10-28 23:53:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:58,878 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-28 23:53:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:53:58,881 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 [2021-10-28 23:53:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:58,898 INFO L225 Difference]: With dead ends: 19 [2021-10-28 23:53:58,898 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:53:58,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:53:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:53:58,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:53:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 2 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) [2021-10-28 23:53:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-28 23:53:58,942 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-28 23:53:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:58,943 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-28 23:53:58,943 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) [2021-10-28 23:53:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-28 23:53:58,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:53:58,944 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:58,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:58,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:53:58,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:53:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:58,946 INFO L85 PathProgramCache]: Analyzing trace with hash -280547992, now seen corresponding path program 1 times [2021-10-28 23:53:58,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:58,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877021239] [2021-10-28 23:53:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:58,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:53:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:59,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:53:59,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877021239] [2021-10-28 23:53:59,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877021239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:59,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:59,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:53:59,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740913670] [2021-10-28 23:53:59,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:53:59,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:53:59,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:53:59,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:53:59,158 INFO L87 Difference]: Start difference. First operand 16 states and 15 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) [2021-10-28 23:53:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:59,210 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-28 23:53:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:53:59,211 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 [2021-10-28 23:53:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:59,212 INFO L225 Difference]: With dead ends: 13 [2021-10-28 23:53:59,212 INFO L226 Difference]: Without dead ends: 13 [2021-10-28 23:53:59,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:53:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-28 23:53:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 23:53:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 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) [2021-10-28 23:53:59,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-28 23:53:59,221 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-28 23:53:59,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:59,221 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-28 23:53:59,221 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) [2021-10-28 23:53:59,222 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-28 23:53:59,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:53:59,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:59,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:59,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:53:59,224 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:53:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash -28282382, now seen corresponding path program 1 times [2021-10-28 23:53:59,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:59,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415921666] [2021-10-28 23:53:59,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:59,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:59,290 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:53:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:59,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:53:59,380 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:53:59,382 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:53:59,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:53:59,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:53:59,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:53:59,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:53:59,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:53:59,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:53:59,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:53:59,391 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:53:59,395 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:53:59,406 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:53:59,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:53:59 BoogieIcfgContainer [2021-10-28 23:53:59,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:53:59,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:53:59,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:53:59,422 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:53:59,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:58" (3/4) ... [2021-10-28 23:53:59,426 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:53:59,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:53:59,429 INFO L168 Benchmark]: Toolchain (without parser) took 2721.84 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 56.0 MB in the beginning and 55.8 MB in the end (delta: 142.1 kB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,430 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:59,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.65 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 59.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,431 INFO L168 Benchmark]: Boogie Preprocessor took 62.43 ms. Allocated memory is still 92.3 MB. Free memory was 59.6 MB in the beginning and 57.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,433 INFO L168 Benchmark]: RCFGBuilder took 730.40 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 57.2 MB in the beginning and 95.2 MB in the end (delta: -38.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,434 INFO L168 Benchmark]: TraceAbstraction took 1268.52 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 56.7 MB in the end (delta: 37.9 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,435 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 119.5 MB. Free memory was 56.7 MB in the beginning and 55.8 MB in the end (delta: 874.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:59,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.65 ms. Allocated memory is still 92.3 MB. Free memory was 55.9 MB in the beginning and 59.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.43 ms. Allocated memory is still 92.3 MB. Free memory was 59.6 MB in the beginning and 57.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 730.40 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 57.2 MB in the beginning and 95.2 MB in the end (delta: -38.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1268.52 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 56.7 MB in the end (delta: 37.9 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 119.5 MB. Free memory was 56.7 MB in the beginning and 55.8 MB in the end (delta: 874.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * 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 - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L534] data.str.p2 = &data VAL [data={3:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}] [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 40 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 17 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:53:59,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:54:02,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:54:02,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:54:02,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:54:02,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:54:02,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:54:02,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:54:02,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:54:02,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:54:02,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:54:02,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:54:02,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:54:02,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:54:02,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:54:02,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:54:02,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:54:02,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:54:02,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:54:02,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:54:02,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:54:02,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:54:02,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:54:02,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:54:02,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:54:02,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:54:02,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:54:02,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:54:02,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:54:02,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:54:02,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:54:02,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:54:02,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:54:02,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:54:02,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:54:02,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:54:02,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:54:02,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:54:02,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:54:02,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:54:02,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:54:02,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:54:02,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:54:02,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:54:02,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:54:02,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:54:02,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:54:02,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:54:02,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:54:02,675 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:54:02,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:54:02,676 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:54:02,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:54:02,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:54:02,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:54:02,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:54:02,679 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:54:02,679 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:54:02,679 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:54:02,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:54:02,680 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:54:02,680 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:54:02,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:54:02,681 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:54:02,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:54:02,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:54:02,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:54:02,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:54:02,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:02,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:54:02,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:54:02,683 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:54:02,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:54:02,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:54:02,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:54:02,685 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2021-10-28 23:54:03,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:54:03,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:54:03,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:54:03,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:54:03,161 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:54:03,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-28 23:54:03,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/8b8cba86a/909e643ae20948ab9b188a8adacb6f26/FLAGd0bb1c33f [2021-10-28 23:54:03,950 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:54:03,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-28 23:54:03,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/8b8cba86a/909e643ae20948ab9b188a8adacb6f26/FLAGd0bb1c33f [2021-10-28 23:54:04,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/data/8b8cba86a/909e643ae20948ab9b188a8adacb6f26 [2021-10-28 23:54:04,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:54:04,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:54:04,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:04,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:54:04,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:54:04,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c26ef2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04, skipping insertion in model container [2021-10-28 23:54:04,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:54:04,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:54:04,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:04,697 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:54:04,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:04,786 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:54:04,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04 WrapperNode [2021-10-28 23:54:04,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:04,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:54:04,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:54:04,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:54:04,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:54:04,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:54:04,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:54:04,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:54:04,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (1/1) ... [2021-10-28 23:54:04,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:04,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:54:04,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:54:04,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:54:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:54:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:54:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:54:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:54:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:54:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:54:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:54:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:54:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:54:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:54:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:54:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:54:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:54:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:54:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:54:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:54:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:54:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:54:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:54:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:54:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:54:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:54:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:54:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:54:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:54:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:54:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:54:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:54:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:54:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:54:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:54:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:54:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:54:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:54:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:54:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:54:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:54:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:54:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:54:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:54:04,983 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:54:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:54:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:54:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:54:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:54:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:54:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:54:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:54:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:54:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:54:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:54:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:54:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:54:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:54:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:54:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:54:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:54:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:54:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:54:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:54:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:54:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:54:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:54:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:54:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:54:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:54:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:54:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:54:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:54:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:54:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:54:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:54:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:54:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:54:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:54:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:54:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:54:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:54:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:54:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:54:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:54:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:54:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:54:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:54:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:54:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:54:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:54:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:54:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:54:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:54:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:54:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:54:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:54:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:54:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:54:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:54:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:54:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:54:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:54:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:54:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:54:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:54:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:54:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:54:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:54:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:54:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:54:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:54:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:54:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:54:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:54:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:54:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:54:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:54:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:54:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:54:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:54:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:54:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:54:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:54:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:54:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:54:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:54:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:54:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:54:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:54:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:54:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:54:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:54:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:54:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:54:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:54:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:54:05,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:54:05,732 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 23:54:05,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:05 BoogieIcfgContainer [2021-10-28 23:54:05,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:54:05,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:54:05,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:54:05,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:54:05,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:54:04" (1/3) ... [2021-10-28 23:54:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1329f534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:05, skipping insertion in model container [2021-10-28 23:54:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:04" (2/3) ... [2021-10-28 23:54:05,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1329f534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:05, skipping insertion in model container [2021-10-28 23:54:05,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:05" (3/3) ... [2021-10-28 23:54:05,749 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-28 23:54:05,756 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:54:05,757 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 23:54:05,807 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:54:05,814 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 [2021-10-28 23:54:05,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:54:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:54:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:54:05,840 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:05,841 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:05,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:54:05,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:05,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1579467459, now seen corresponding path program 1 times [2021-10-28 23:54:05,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:05,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349563176] [2021-10-28 23:54:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:05,865 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:05,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:05,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:05,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:54:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:06,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:54:06,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:06,375 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-28 23:54:06,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 13 [2021-10-28 23:54:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:06,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:06,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:06,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349563176] [2021-10-28 23:54:06,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349563176] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:06,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:06,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:54:06,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215844533] [2021-10-28 23:54:06,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:54:06,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:54:06,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:54:06,536 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:06,639 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-28 23:54:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:54:06,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 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 [2021-10-28 23:54:06,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:06,650 INFO L225 Difference]: With dead ends: 19 [2021-10-28 23:54:06,651 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:54:06,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:54:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:54:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:54:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 2 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) [2021-10-28 23:54:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-28 23:54:06,701 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-28 23:54:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:06,702 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-28 23:54:06,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-28 23:54:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:54:06,703 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:06,703 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:06,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:06,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:06,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:54:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1579467458, now seen corresponding path program 1 times [2021-10-28 23:54:06,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:06,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593671739] [2021-10-28 23:54:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:06,916 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:06,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:06,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:54:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:07,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:54:07,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:07,213 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:54:07,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2021-10-28 23:54:07,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 21 treesize of output 19 [2021-10-28 23:54:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:07,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:07,421 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:07,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593671739] [2021-10-28 23:54:07,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593671739] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:07,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:07,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 23:54:07,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968546908] [2021-10-28 23:54:07,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:54:07,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:07,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:54:07,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:07,426 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:07,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:07,489 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-28 23:54:07,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:54:07,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 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 [2021-10-28 23:54:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:07,491 INFO L225 Difference]: With dead ends: 13 [2021-10-28 23:54:07,491 INFO L226 Difference]: Without dead ends: 13 [2021-10-28 23:54:07,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-28 23:54:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 23:54:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 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) [2021-10-28 23:54:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-28 23:54:07,496 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-28 23:54:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:07,496 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-28 23:54:07,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-28 23:54:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:54:07,498 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:07,498 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:07,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:07,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:07,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-28 23:54:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:07,709 INFO L85 PathProgramCache]: Analyzing trace with hash -816106894, now seen corresponding path program 1 times [2021-10-28 23:54:07,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:07,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056462364] [2021-10-28 23:54:07,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:07,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:07,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:07,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:07,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:54:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:54:07,943 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:54:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:54:08,073 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:54:08,073 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:54:08,083 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:54:08,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:54:08,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:54:08,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:54:08,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:54:08,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:54:08,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:54:08,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:08,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:08,306 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:54:08,310 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:54:08,323 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:54:08,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:54:08 BoogieIcfgContainer [2021-10-28 23:54:08,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:54:08,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:54:08,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:54:08,340 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:54:08,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:05" (3/4) ... [2021-10-28 23:54:08,347 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:54:08,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:54:08,349 INFO L168 Benchmark]: Toolchain (without parser) took 4128.87 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 42.3 MB in the beginning and 60.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 118.0 kB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,350 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 36.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:54:08,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.63 ms. Allocated memory is still 67.1 MB. Free memory was 42.1 MB in the beginning and 43.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,352 INFO L168 Benchmark]: Boogie Preprocessor took 73.10 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 40.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,355 INFO L168 Benchmark]: RCFGBuilder took 873.94 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 38.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,359 INFO L168 Benchmark]: TraceAbstraction took 2598.53 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 61.0 MB in the end (delta: -23.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,360 INFO L168 Benchmark]: Witness Printer took 9.34 ms. Allocated memory is still 83.9 MB. Free memory was 61.0 MB in the beginning and 60.5 MB in the end (delta: 494.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:08,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 36.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.63 ms. Allocated memory is still 67.1 MB. Free memory was 42.1 MB in the beginning and 43.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.10 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 40.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 873.94 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 38.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2598.53 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 61.0 MB in the end (delta: -23.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * Witness Printer took 9.34 ms. Allocated memory is still 83.9 MB. Free memory was 61.0 MB in the beginning and 60.5 MB in the end (delta: 494.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * 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 - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={4099:0}, malloc(37U)={1:0}] [L534] data.str.p2 = &data VAL [data={4099:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={4099:0}] [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 46 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 11 SDslu, 16 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 62 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:54:08,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb12caad-0608-4deb-ba83-6817a8652afa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...