./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be --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_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be --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-e943c26 [2021-10-21 19:35:24,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:35:24,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:35:24,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:35:24,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:35:24,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:35:24,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:35:24,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:35:24,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:35:24,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:35:24,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:35:24,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:35:24,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:35:24,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:35:24,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:35:24,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:35:24,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:35:24,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:35:24,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:35:24,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:35:24,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:35:24,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:35:24,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:35:24,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:35:24,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:35:24,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:35:24,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:35:24,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:35:24,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:35:24,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:35:24,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:35:24,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:35:24,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:35:24,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:35:24,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:35:24,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:35:24,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:35:24,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:35:24,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:35:24,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:35:24,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:35:24,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:35:24,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:35:24,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:35:24,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:35:24,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:35:24,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:35:24,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:35:24,110 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:35:24,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:35:24,110 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:35:24,111 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:35:24,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:35:24,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:35:24,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:35:24,112 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:35:24,112 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:35:24,112 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:35:24,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:35:24,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:35:24,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:35:24,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:35:24,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:35:24,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:35:24,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:35:24,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:24,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:35:24,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:35:24,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:35:24,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:35:24,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:35:24,116 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_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2021-10-21 19:35:24,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:35:24,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:35:24,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:35:24,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:35:24,409 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:35:24,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-21 19:35:24,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/c4a882ef5/3c39a807f566465e9ec20c1d6600d083/FLAG6c6ab78e3 [2021-10-21 19:35:24,985 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:35:24,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-21 19:35:25,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/c4a882ef5/3c39a807f566465e9ec20c1d6600d083/FLAG6c6ab78e3 [2021-10-21 19:35:25,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/c4a882ef5/3c39a807f566465e9ec20c1d6600d083 [2021-10-21 19:35:25,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:35:25,316 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:35:25,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:25,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:35:25,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:35:25,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f51165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25, skipping insertion in model container [2021-10-21 19:35:25,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:35:25,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:35:25,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:25,782 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:35:25,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:25,887 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:35:25,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25 WrapperNode [2021-10-21 19:35:25,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:25,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:35:25,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:35:25,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:35:25,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:35:25,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:35:25,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:35:25,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:35:25,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (1/1) ... [2021-10-21 19:35:25,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:35:26,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:35:26,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:35:26,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:35:26,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:35:26,075 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-21 19:35:26,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:35:26,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:35:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:35:26,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:35:26,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:35:26,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:35:26,077 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:35:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-21 19:35:26,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-21 19:35:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-21 19:35:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-21 19:35:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:35:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:35:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:35:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:35:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:35:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:35:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:35:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:35:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:35:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:35:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:35:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:35:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:35:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:35:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:35:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:35:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:35:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:35:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:35:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:35:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:35:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:35:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:35:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:35:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:35:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:35:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:35:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:35:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:35:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:35:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:35:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:35:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:35:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:35:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:35:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:35:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:35:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:35:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:35:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:35:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:35:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:35:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:35:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:35:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:35:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:35:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:35:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:35:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:35:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:35:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:35:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:35:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:35:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:35:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:35:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:35:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:35:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:35:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:35:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:35:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:35:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:35:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:35:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:35:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:35:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:35:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:35:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:35:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:35:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:35:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:35:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:35:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:35:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:35:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:35:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:35:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:35:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:35:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:35:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:35:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:35:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:35:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:35:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:35:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:35:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:35:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:35:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:35:26,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:35:26,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:35:26,616 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-21 19:35:26,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:26 BoogieIcfgContainer [2021-10-21 19:35:26,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:35:26,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:35:26,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:35:26,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:35:26,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:35:25" (1/3) ... [2021-10-21 19:35:26,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7159e374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:26, skipping insertion in model container [2021-10-21 19:35:26,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:25" (2/3) ... [2021-10-21 19:35:26,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7159e374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:26, skipping insertion in model container [2021-10-21 19:35:26,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:26" (3/3) ... [2021-10-21 19:35:26,637 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-21 19:35:26,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:35:26,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-21 19:35:26,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:35:26,711 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 [2021-10-21 19:35:26,711 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-21 19:35:26,729 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) [2021-10-21 19:35:26,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:35:26,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:26,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:26,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:26,744 INFO L82 PathProgramCache]: Analyzing trace with hash -280547993, now seen corresponding path program 1 times [2021-10-21 19:35:26,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:26,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806591727] [2021-10-21 19:35:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:26,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-21 19:35:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:27,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:27,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806591727] [2021-10-21 19:35:27,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806591727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:27,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:27,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:27,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422760614] [2021-10-21 19:35:27,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:35:27,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:35:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:27,099 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) [2021-10-21 19:35:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:27,167 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-21 19:35:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:35:27,169 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 [2021-10-21 19:35:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:27,175 INFO L225 Difference]: With dead ends: 19 [2021-10-21 19:35:27,175 INFO L226 Difference]: Without dead ends: 16 [2021-10-21 19:35:27,176 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-21 19:35:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 19:35:27,218 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) [2021-10-21 19:35:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-21 19:35:27,220 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-21 19:35:27,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:27,221 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-21 19:35:27,221 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) [2021-10-21 19:35:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-21 19:35:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:35:27,223 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:27,223 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:27,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:35:27,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:27,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -280547992, now seen corresponding path program 1 times [2021-10-21 19:35:27,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:27,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470072362] [2021-10-21 19:35:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:27,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-21 19:35:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:27,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:27,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:27,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470072362] [2021-10-21 19:35:27,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470072362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:27,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:27,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:27,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119098368] [2021-10-21 19:35:27,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:35:27,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:27,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:35:27,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:27,392 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) [2021-10-21 19:35:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:27,430 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-21 19:35:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:35:27,430 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 [2021-10-21 19:35:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:27,431 INFO L225 Difference]: With dead ends: 13 [2021-10-21 19:35:27,431 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:35:27,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:35:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:35:27,436 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) [2021-10-21 19:35:27,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-21 19:35:27,437 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-21 19:35:27,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:27,438 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-21 19:35:27,438 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) [2021-10-21 19:35:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-21 19:35:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:35:27,439 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:27,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:27,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:35:27,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:27,441 INFO L82 PathProgramCache]: Analyzing trace with hash -28282382, now seen corresponding path program 1 times [2021-10-21 19:35:27,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:27,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921313788] [2021-10-21 19:35:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:27,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:27,494 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:27,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:35:27,574 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:35:27,575 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:35:27,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-21 19:35:27,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-21 19:35:27,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-21 19:35:27,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-21 19:35:27,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-21 19:35:27,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-21 19:35:27,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:35:27,591 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:35:27,600 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:35:27,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:35:27 BoogieIcfgContainer [2021-10-21 19:35:27,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:35:27,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:35:27,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:35:27,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:35:27,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:26" (3/4) ... [2021-10-21 19:35:27,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:35:27,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:35:27,622 INFO L168 Benchmark]: Toolchain (without parser) took 2305.12 ms. Allocated memory is still 113.2 MB. Free memory was 76.7 MB in the beginning and 70.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:27,623 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 84.5 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:27,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.36 ms. Allocated memory is still 113.2 MB. Free memory was 76.5 MB in the beginning and 82.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:27,630 INFO L168 Benchmark]: Boogie Preprocessor took 94.72 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 79.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:27,630 INFO L168 Benchmark]: RCFGBuilder took 636.39 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 61.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:27,631 INFO L168 Benchmark]: TraceAbstraction took 988.19 ms. Allocated memory is still 113.2 MB. Free memory was 61.4 MB in the beginning and 70.4 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:27,632 INFO L168 Benchmark]: Witness Printer took 7.20 ms. Allocated memory is still 113.2 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:27,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 84.5 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 570.36 ms. Allocated memory is still 113.2 MB. Free memory was 76.5 MB in the beginning and 82.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.72 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 79.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 636.39 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 61.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 988.19 ms. Allocated memory is still 113.2 MB. Free memory was 61.4 MB in the beginning and 70.4 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.20 ms. Allocated memory is still 113.2 MB. Free memory is still 70.4 MB. There was no memory consumed. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 888.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 16.1ms, AutomataDifference: 136.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 17 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.8ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.2ms SsaConstructionTime, 130.5ms SatisfiabilityAnalysisTime, 262.9ms 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 [2021-10-21 19:35:27,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 19:35:30,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:35:30,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:35:30,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:35:30,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:35:30,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:35:30,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:35:30,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:35:30,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:35:30,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:35:30,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:35:30,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:35:30,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:35:30,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:35:30,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:35:30,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:35:30,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:35:30,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:35:30,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:35:30,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:35:30,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:35:30,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:35:30,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:35:30,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:35:30,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:35:30,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:35:30,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:35:30,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:35:30,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:35:30,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:35:30,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:35:30,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:35:30,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:35:30,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:35:30,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:35:30,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:35:30,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:35:30,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:35:30,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:35:30,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:35:30,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:35:30,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:35:30,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:35:30,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:35:30,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:35:30,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:35:30,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:35:30,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:35:30,313 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:35:30,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:35:30,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:35:30,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:35:30,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:35:30,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:35:30,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:35:30,316 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:35:30,316 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:35:30,317 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:35:30,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:35:30,317 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:35:30,317 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:35:30,317 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:35:30,318 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:35:30,318 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:35:30,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:35:30,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:35:30,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:35:30,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:30,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:35:30,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:35:30,320 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:35:30,320 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:35:30,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:35:30,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:35:30,321 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_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2021-10-21 19:35:30,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:35:30,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:35:30,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:35:30,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:35:30,824 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:35:30,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-21 19:35:30,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/529374c95/4649b73cee4a4b198543f328c863278f/FLAG6c9c2b556 [2021-10-21 19:35:31,570 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:35:31,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-21 19:35:31,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/529374c95/4649b73cee4a4b198543f328c863278f/FLAG6c9c2b556 [2021-10-21 19:35:31,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/data/529374c95/4649b73cee4a4b198543f328c863278f [2021-10-21 19:35:31,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:35:31,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:35:31,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:31,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:35:31,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:35:31,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:31" (1/1) ... [2021-10-21 19:35:31,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccfa14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:31, skipping insertion in model container [2021-10-21 19:35:31,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:31" (1/1) ... [2021-10-21 19:35:31,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:35:31,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:35:32,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:32,234 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:35:32,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:32,354 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:35:32,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32 WrapperNode [2021-10-21 19:35:32,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:32,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:35:32,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:35:32,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:35:32,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:35:32,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:35:32,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:35:32,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:35:32,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (1/1) ... [2021-10-21 19:35:32,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:32,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:35:32,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:35:32,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:35:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:35:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:35:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:35:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:35:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:35:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:35:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:35:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:35:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:35:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:35:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:35:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:35:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:35:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:35:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:35:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:35:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:35:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:35:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:35:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:35:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:35:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:35:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:35:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:35:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:35:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:35:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:35:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:35:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:35:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:35:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:35:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:35:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:35:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:35:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:35:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:35:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:35:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:35:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:35:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:35:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:35:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:35:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:35:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:35:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:35:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:35:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:35:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:35:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 19:35:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:35:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:35:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:35:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:35:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:35:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:35:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-21 19:35:33,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:35:33,108 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-21 19:35:33,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:33 BoogieIcfgContainer [2021-10-21 19:35:33,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:35:33,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:35:33,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:35:33,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:35:33,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:35:31" (1/3) ... [2021-10-21 19:35:33,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa20f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:33, skipping insertion in model container [2021-10-21 19:35:33,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:32" (2/3) ... [2021-10-21 19:35:33,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa20f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:33, skipping insertion in model container [2021-10-21 19:35:33,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:33" (3/3) ... [2021-10-21 19:35:33,127 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-21 19:35:33,132 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:35:33,133 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-21 19:35:33,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:35:33,194 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 [2021-10-21 19:35:33,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-21 19:35:33,206 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) [2021-10-21 19:35:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:35:33,214 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:33,215 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:33,215 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:33,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:33,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1579467459, now seen corresponding path program 1 times [2021-10-21 19:35:33,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:35:33,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2910800] [2021-10-21 19:35:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:33,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:35:33,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:35:33,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:35:33,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:35:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:33,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:35:33,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:35:33,580 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-21 19:35:33,582 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 [2021-10-21 19:35:33,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:33,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:35:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:33,707 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:35:33,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2910800] [2021-10-21 19:35:33,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2910800] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:33,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:33,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:35:33,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362313048] [2021-10-21 19:35:33,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:35:33,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:35:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:35:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:33,740 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) [2021-10-21 19:35:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:33,820 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-21 19:35:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:35:33,822 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 [2021-10-21 19:35:33,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:33,829 INFO L225 Difference]: With dead ends: 19 [2021-10-21 19:35:33,829 INFO L226 Difference]: Without dead ends: 16 [2021-10-21 19:35:33,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:33,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-21 19:35:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 19:35:33,861 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) [2021-10-21 19:35:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-21 19:35:33,878 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-21 19:35:33,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:33,879 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-21 19:35:33,879 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) [2021-10-21 19:35:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-21 19:35:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:35:33,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:33,880 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:33,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:35:34,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:35:34,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:34,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1579467458, now seen corresponding path program 1 times [2021-10-21 19:35:34,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:35:34,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453193999] [2021-10-21 19:35:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:34,083 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:35:34,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:35:34,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:35:34,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:35:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:34,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:35:34,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:35:34,325 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:35:34,326 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 [2021-10-21 19:35:34,342 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 [2021-10-21 19:35:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:34,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:35:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:34,504 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:35:34,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453193999] [2021-10-21 19:35:34,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453193999] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:34,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:34,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-21 19:35:34,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097199798] [2021-10-21 19:35:34,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:35:34,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:35:34,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:35:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:34,510 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) [2021-10-21 19:35:34,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:34,567 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-21 19:35:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:35:34,568 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 [2021-10-21 19:35:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:34,568 INFO L225 Difference]: With dead ends: 13 [2021-10-21 19:35:34,568 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:35:34,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:35:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:35:34,571 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) [2021-10-21 19:35:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-21 19:35:34,572 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-21 19:35:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:34,572 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-21 19:35:34,572 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) [2021-10-21 19:35:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-21 19:35:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:35:34,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:34,573 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:34,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:35:34,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:35:34,784 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-21 19:35:34,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:34,785 INFO L82 PathProgramCache]: Analyzing trace with hash -816106894, now seen corresponding path program 1 times [2021-10-21 19:35:34,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:35:34,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039150106] [2021-10-21 19:35:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:34,786 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:35:34,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:35:34,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:35:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:35:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:34,974 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:35,086 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:35:35,086 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:35:35,087 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:35:35,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-21 19:35:35,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-21 19:35:35,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-21 19:35:35,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-21 19:35:35,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-21 19:35:35,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-21 19:35:35,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:35:35,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:35:35,297 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:35:35,307 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:35:35,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:35:35 BoogieIcfgContainer [2021-10-21 19:35:35,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:35:35,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:35:35,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:35:35,326 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:35:35,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:33" (3/4) ... [2021-10-21 19:35:35,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:35:35,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:35:35,336 INFO L168 Benchmark]: Toolchain (without parser) took 3494.96 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 43.4 MB in the beginning and 43.7 MB in the end (delta: -240.7 kB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:35,337 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:35,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.85 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 42.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:35,338 INFO L168 Benchmark]: Boogie Preprocessor took 77.46 ms. Allocated memory is still 65.0 MB. Free memory was 42.1 MB in the beginning and 39.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:35,339 INFO L168 Benchmark]: RCFGBuilder took 676.54 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 39.3 MB in the beginning and 69.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:35,340 INFO L168 Benchmark]: TraceAbstraction took 2211.52 ms. Allocated memory is still 92.3 MB. Free memory was 68.6 MB in the beginning and 43.7 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:35,342 INFO L168 Benchmark]: Witness Printer took 5.51 ms. Allocated memory is still 92.3 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:35,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.85 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 42.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.46 ms. Allocated memory is still 65.0 MB. Free memory was 42.1 MB in the beginning and 39.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 676.54 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 39.3 MB in the beginning and 69.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2211.52 ms. Allocated memory is still 92.3 MB. Free memory was 68.6 MB in the beginning and 43.7 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.51 ms. Allocated memory is still 92.3 MB. Free memory is still 43.7 MB. There was no memory consumed. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 2108.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.4ms, AutomataDifference: 173.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 19 SDtfs, 11 SDslu, 16 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.7ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 55.1ms SsaConstructionTime, 146.2ms SatisfiabilityAnalysisTime, 517.5ms 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 [2021-10-21 19:35:35,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fee1ff-0c88-45ce-a324-54a8f6169373/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...