./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/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_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/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_7f1fc78b-d439-43c3-a899-789b95bac489/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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ................................................................................................................................... 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_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/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_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/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_7f1fc78b-d439-43c3-a899-789b95bac489/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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:03:22,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:03:22,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:03:22,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:03:22,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:03:22,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:03:22,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:03:22,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:03:22,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:03:22,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:03:22,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:03:22,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:03:22,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:03:22,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:03:22,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:03:22,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:03:22,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:03:22,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:03:22,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:03:22,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:03:22,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:03:22,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:03:22,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:03:22,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:03:22,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:03:22,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:03:22,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:03:22,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:03:22,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:03:22,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:03:22,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:03:22,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:03:22,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:03:22,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:03:22,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:03:22,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:03:22,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:03:22,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:03:22,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:03:22,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:03:22,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:03:22,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 20:03:22,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:03:22,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:03:22,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:03:22,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:03:22,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:03:22,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:03:22,138 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:03:22,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:03:22,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:03:22,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:03:22,139 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:03:22,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:03:22,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:03:22,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:03:22,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:03:22,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:03:22,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:03:22,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:03:22,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:03:22,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:03:22,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:03:22,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:03:22,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:03:22,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:03:22,142 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_7f1fc78b-d439-43c3-a899-789b95bac489/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-21 20:03:22,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:03:22,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:03:22,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:03:22,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:03:22,422 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:03:22,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-21 20:03:22,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/4128e24fe/7fb0bf56a5a74947bd9b99fa225c0574/FLAG00c36b1e7 [2021-10-21 20:03:23,095 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:03:23,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-21 20:03:23,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/4128e24fe/7fb0bf56a5a74947bd9b99fa225c0574/FLAG00c36b1e7 [2021-10-21 20:03:23,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/4128e24fe/7fb0bf56a5a74947bd9b99fa225c0574 [2021-10-21 20:03:23,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:03:23,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:03:23,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:23,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:03:23,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:03:23,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:23" (1/1) ... [2021-10-21 20:03:23,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592d3a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:23, skipping insertion in model container [2021-10-21 20:03:23,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:23" (1/1) ... [2021-10-21 20:03:23,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:03:23,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:03:23,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:23,929 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 20:03:23,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b90edae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:23, skipping insertion in model container [2021-10-21 20:03:23,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:23,930 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 20:03:23,932 INFO L168 Benchmark]: Toolchain (without parser) took 564.31 ms. Allocated memory is still 111.1 MB. Free memory was 71.9 MB in the beginning and 81.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:23,933 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 111.1 MB. Free memory is still 89.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:23,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.28 ms. Allocated memory is still 111.1 MB. Free memory was 71.7 MB in the beginning and 81.0 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:23,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 111.1 MB. Free memory is still 89.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.28 ms. Allocated memory is still 111.1 MB. Free memory was 71.7 MB in the beginning and 81.0 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:03:26,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:03:26,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:03:26,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:03:26,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:03:26,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:03:26,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:03:26,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:03:26,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:03:26,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:03:26,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:03:26,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:03:26,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:03:26,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:03:26,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:03:26,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:03:26,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:03:26,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:03:26,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:03:26,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:03:26,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:03:26,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:03:26,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:03:26,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:03:26,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:03:26,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:03:26,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:03:26,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:03:26,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:03:26,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:03:26,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:03:26,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:03:26,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:03:26,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:03:26,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:03:26,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:03:26,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:03:26,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:03:26,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:03:26,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:03:26,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:03:26,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 20:03:26,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:03:26,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:03:26,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:03:26,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:03:26,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:03:26,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:03:26,288 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:03:26,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:03:26,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:03:26,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:03:26,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:03:26,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:03:26,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:03:26,290 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:03:26,291 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:03:26,291 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:03:26,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:03:26,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:03:26,291 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:03:26,292 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:03:26,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:03:26,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:03:26,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:03:26,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:03:26,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:03:26,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:03:26,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:03:26,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:03:26,294 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:03:26,294 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:03:26,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:03:26,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:03:26,295 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_7f1fc78b-d439-43c3-a899-789b95bac489/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-21 20:03:26,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:03:26,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:03:26,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:03:26,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:03:26,736 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:03:26,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-21 20:03:26,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/e15fd5da4/66c90c2268c242ada98dddc6a2da4150/FLAGe85092175 [2021-10-21 20:03:27,422 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:03:27,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-21 20:03:27,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/e15fd5da4/66c90c2268c242ada98dddc6a2da4150/FLAGe85092175 [2021-10-21 20:03:27,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/data/e15fd5da4/66c90c2268c242ada98dddc6a2da4150 [2021-10-21 20:03:27,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:03:27,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:03:27,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:27,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:03:27,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:03:27,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:27" (1/1) ... [2021-10-21 20:03:27,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5498da9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:27, skipping insertion in model container [2021-10-21 20:03:27,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:03:27" (1/1) ... [2021-10-21 20:03:27,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:03:27,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:03:28,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:28,176 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 20:03:28,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:03:28,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:28,247 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:03:28,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:03:28,397 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:03:28,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28 WrapperNode [2021-10-21 20:03:28,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:03:28,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:03:28,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:03:28,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:03:28,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:03:28,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:03:28,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:03:28,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:03:28,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (1/1) ... [2021-10-21 20:03:28,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:03:28,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:28,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:28,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:03:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 20:03:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:03:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:03:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:03:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 20:03:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 20:03:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 20:03:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 20:03:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:03:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 20:03:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 20:03:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 20:03:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 20:03:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 20:03:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 20:03:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 20:03:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 20:03:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 20:03:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 20:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 20:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 20:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 20:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 20:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 20:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 20:03:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 20:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 20:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 20:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 20:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 20:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 20:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 20:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 20:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 20:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 20:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 20:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 20:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 20:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 20:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 20:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 20:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 20:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 20:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 20:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 20:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 20:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 20:03:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 20:03:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 20:03:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 20:03:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 20:03:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 20:03:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 20:03:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 20:03:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 20:03:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 20:03:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 20:03:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 20:03:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 20:03:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 20:03:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 20:03:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 20:03:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 20:03:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 20:03:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 20:03:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 20:03:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 20:03:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 20:03:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 20:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 20:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 20:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 20:03:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 20:03:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 20:03:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 20:03:29,256 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:03:29,657 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:03:30,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:03:30,091 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-21 20:03:30,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:30 BoogieIcfgContainer [2021-10-21 20:03:30,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:03:30,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:03:30,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:03:30,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:03:30,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:03:27" (1/3) ... [2021-10-21 20:03:30,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421d60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:03:30, skipping insertion in model container [2021-10-21 20:03:30,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:03:28" (2/3) ... [2021-10-21 20:03:30,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421d60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:03:30, skipping insertion in model container [2021-10-21 20:03:30,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:30" (3/3) ... [2021-10-21 20:03:30,102 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-10-21 20:03:30,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:03:30,111 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-21 20:03:30,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:03:30,181 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 20:03:30,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-21 20:03:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-21 20:03:30,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 20:03:30,205 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:03:30,206 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:30,206 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:03:30,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:30,211 INFO L82 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-10-21 20:03:30,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:03:30,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736368328] [2021-10-21 20:03:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:30,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:03:30,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:03:30,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:03:30,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:03:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:30,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:03:30,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:30,593 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 20:03:30,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:03:30,740 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 20:03:30,741 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:03:30,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736368328] [2021-10-21 20:03:30,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736368328] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:03:30,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:03:30,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:03:30,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206109551] [2021-10-21 20:03:30,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:03:30,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:03:30,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:03:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:03:30,776 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:03:30,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:30,939 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-21 20:03:30,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:03:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-21 20:03:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:03:30,950 INFO L225 Difference]: With dead ends: 78 [2021-10-21 20:03:30,950 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 20:03:30,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:03:30,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 20:03:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-21 20:03:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 20:03:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-21 20:03:30,990 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-21 20:03:30,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:03:30,991 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-21 20:03:30,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:03:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-21 20:03:30,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 20:03:30,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:03:30,993 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:31,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-21 20:03:31,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:03:31,206 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:03:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:31,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-10-21 20:03:31,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:03:31,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408381297] [2021-10-21 20:03:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:31,212 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:03:31,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:03:31,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:03:31,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:03:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:31,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:03:31,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:31,471 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 20:03:31,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:03:31,574 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 20:03:31,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:03:31,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408381297] [2021-10-21 20:03:31,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408381297] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:03:31,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:03:31,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:03:31,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190710776] [2021-10-21 20:03:31,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:03:31,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:03:31,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:03:31,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:03:31,586 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:03:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:31,689 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-21 20:03:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:03:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-21 20:03:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:03:31,691 INFO L225 Difference]: With dead ends: 76 [2021-10-21 20:03:31,691 INFO L226 Difference]: Without dead ends: 73 [2021-10-21 20:03:31,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:03:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-21 20:03:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-10-21 20:03:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-21 20:03:31,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-10-21 20:03:31,704 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-10-21 20:03:31,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:03:31,705 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-10-21 20:03:31,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:03:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-10-21 20:03:31,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 20:03:31,708 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:03:31,708 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:31,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:31,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:03:31,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:03:31,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:31,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-10-21 20:03:31,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:03:31,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253142767] [2021-10-21 20:03:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:31,922 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:03:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:03:31,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:03:31,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:03:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:32,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:03:32,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:32,188 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 20:03:32,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:03:32,274 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 20:03:32,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:03:32,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253142767] [2021-10-21 20:03:32,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253142767] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:03:32,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:03:32,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 20:03:32,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068206373] [2021-10-21 20:03:32,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:03:32,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:03:32,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:03:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:03:32,279 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 20:03:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:32,369 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-10-21 20:03:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:03:32,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-21 20:03:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:03:32,373 INFO L225 Difference]: With dead ends: 93 [2021-10-21 20:03:32,373 INFO L226 Difference]: Without dead ends: 93 [2021-10-21 20:03:32,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:03:32,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-21 20:03:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-10-21 20:03:32,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 20:03:32,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-10-21 20:03:32,382 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-10-21 20:03:32,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:03:32,382 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-10-21 20:03:32,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 20:03:32,382 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-10-21 20:03:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 20:03:32,388 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:03:32,390 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:32,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:32,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:03:32,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:03:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-10-21 20:03:32,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:03:32,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885419265] [2021-10-21 20:03:32,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:32,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:03:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:03:32,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:03:32,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 20:03:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:32,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:03:32,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:32,857 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 20:03:32,977 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 20:03:32,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-21 20:03:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:03:33,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:03:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:03:33,344 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:03:33,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885419265] [2021-10-21 20:03:33,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885419265] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:03:33,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:03:33,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-21 20:03:33,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842145492] [2021-10-21 20:03:33,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:03:33,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:03:33,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:03:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:03:33,346 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 20:03:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:34,093 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2021-10-21 20:03:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:03:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-21 20:03:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:03:34,096 INFO L225 Difference]: With dead ends: 157 [2021-10-21 20:03:34,096 INFO L226 Difference]: Without dead ends: 157 [2021-10-21 20:03:34,097 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 231.6ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-21 20:03:34,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-21 20:03:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 70. [2021-10-21 20:03:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-21 20:03:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2021-10-21 20:03:34,114 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 23 [2021-10-21 20:03:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:03:34,114 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2021-10-21 20:03:34,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 20:03:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2021-10-21 20:03:34,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 20:03:34,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:03:34,116 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:34,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:34,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:03:34,319 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:03:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:34,320 INFO L82 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-10-21 20:03:34,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:03:34,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703936085] [2021-10-21 20:03:34,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:34,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:03:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:03:34,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:03:34,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 20:03:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:34,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 20:03:34,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:34,574 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 20:03:34,579 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 20:03:36,939 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 20:03:36,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-10-21 20:03:36,951 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:03:36,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-21 20:03:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:03:37,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:03:47,745 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_32| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_32|)))) (exists ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_31|)))) (or (exists ((v_ldv_malloc_~size_28 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_32| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2)))))) is different from false [2021-10-21 20:03:50,036 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 29 treesize of output 27 [2021-10-21 20:03:50,645 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 27 treesize of output 25 [2021-10-21 20:03:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-21 20:03:50,827 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:03:50,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703936085] [2021-10-21 20:03:50,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703936085] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:03:50,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:03:50,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-21 20:03:50,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014680218] [2021-10-21 20:03:50,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-21 20:03:50,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:03:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-21 20:03:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=4, NotChecked=34, Total=380 [2021-10-21 20:03:50,829 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 20:04:30,583 WARN L207 SmtUtils]: Spent 8.26 s on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-10-21 20:04:48,637 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base)) (forall ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_31|))))))))) is different from false [2021-10-21 20:05:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:25,976 INFO L93 Difference]: Finished difference Result 304 states and 364 transitions. [2021-10-21 20:05:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-21 20:05:25,977 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-21 20:05:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:05:25,981 INFO L225 Difference]: With dead ends: 304 [2021-10-21 20:05:25,981 INFO L226 Difference]: Without dead ends: 304 [2021-10-21 20:05:25,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 43296.5ms TimeCoverageRelationStatistics Valid=237, Invalid=1169, Unknown=8, NotChecked=146, Total=1560 [2021-10-21 20:05:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-21 20:05:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 104. [2021-10-21 20:05:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 87 states have internal predecessors, (115), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-10-21 20:05:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2021-10-21 20:05:26,004 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 23 [2021-10-21 20:05:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:05:26,004 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2021-10-21 20:05:26,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 20:05:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2021-10-21 20:05:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 20:05:26,006 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:05:26,006 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:26,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:05:26,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:05:26,207 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:05:26,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:26,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-10-21 20:05:26,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:05:26,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295699750] [2021-10-21 20:05:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:26,208 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:05:26,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:05:26,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:05:26,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 20:05:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:26,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:05:26,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:05:26,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:26,736 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:05:26,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295699750] [2021-10-21 20:05:26,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295699750] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-21 20:05:26,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:05:26,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-21 20:05:26,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402038068] [2021-10-21 20:05:26,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:05:26,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:05:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:05:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:05:26,739 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:05:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:26,815 INFO L93 Difference]: Finished difference Result 95 states and 127 transitions. [2021-10-21 20:05:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:05:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-21 20:05:26,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:05:26,818 INFO L225 Difference]: With dead ends: 95 [2021-10-21 20:05:26,818 INFO L226 Difference]: Without dead ends: 91 [2021-10-21 20:05:26,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:05:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-21 20:05:26,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-10-21 20:05:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 76 states have internal predecessors, (101), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-21 20:05:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2021-10-21 20:05:26,844 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 23 [2021-10-21 20:05:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:05:26,844 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2021-10-21 20:05:26,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:05:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2021-10-21 20:05:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 20:05:26,846 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:05:26,846 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:26,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:05:27,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:05:27,059 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:05:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:27,059 INFO L82 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-10-21 20:05:27,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:05:27,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239874292] [2021-10-21 20:05:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:27,060 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:05:27,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:05:27,061 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:05:27,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 20:05:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:27,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:05:27,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:27,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:27,506 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:05:27,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239874292] [2021-10-21 20:05:27,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239874292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:05:27,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:05:27,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:05:27,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385152406] [2021-10-21 20:05:27,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:05:27,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:05:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:05:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:05:27,508 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:05:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:27,592 INFO L93 Difference]: Finished difference Result 126 states and 164 transitions. [2021-10-21 20:05:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:05:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-21 20:05:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:05:27,594 INFO L225 Difference]: With dead ends: 126 [2021-10-21 20:05:27,594 INFO L226 Difference]: Without dead ends: 126 [2021-10-21 20:05:27,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:05:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-21 20:05:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 93. [2021-10-21 20:05:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 77 states have internal predecessors, (101), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-21 20:05:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 123 transitions. [2021-10-21 20:05:27,613 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 123 transitions. Word has length 25 [2021-10-21 20:05:27,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:05:27,614 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 123 transitions. [2021-10-21 20:05:27,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:05:27,614 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2021-10-21 20:05:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 20:05:27,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:05:27,615 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:27,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:05:27,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:05:27,816 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:05:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-10-21 20:05:27,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:05:27,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858905466] [2021-10-21 20:05:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:27,817 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:05:27,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:05:27,818 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:05:27,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 20:05:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:28,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:05:28,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 20:05:28,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 20:05:28,236 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:05:28,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858905466] [2021-10-21 20:05:28,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858905466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:05:28,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:05:28,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 20:05:28,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065204018] [2021-10-21 20:05:28,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:05:28,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:05:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:05:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:05:28,238 INFO L87 Difference]: Start difference. First operand 93 states and 123 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 20:05:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:28,381 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2021-10-21 20:05:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:05:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-21 20:05:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:05:28,385 INFO L225 Difference]: With dead ends: 91 [2021-10-21 20:05:28,385 INFO L226 Difference]: Without dead ends: 91 [2021-10-21 20:05:28,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 48.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:05:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-21 20:05:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2021-10-21 20:05:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 69 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-21 20:05:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 107 transitions. [2021-10-21 20:05:28,394 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 107 transitions. Word has length 25 [2021-10-21 20:05:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:05:28,395 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 107 transitions. [2021-10-21 20:05:28,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 20:05:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 107 transitions. [2021-10-21 20:05:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 20:05:28,397 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:05:28,397 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:28,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:05:28,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:05:28,610 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:05:28,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:28,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-10-21 20:05:28,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:05:28,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13360550] [2021-10-21 20:05:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:28,611 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:05:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:05:28,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:05:28,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 20:05:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:28,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:05:28,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:05:29,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:29,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:05:29,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13360550] [2021-10-21 20:05:29,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13360550] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:05:29,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:05:29,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-21 20:05:29,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176159642] [2021-10-21 20:05:29,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:05:29,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:05:29,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:05:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:05:29,472 INFO L87 Difference]: Start difference. First operand 85 states and 107 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 20:05:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:29,791 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2021-10-21 20:05:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:05:29,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-10-21 20:05:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:05:29,794 INFO L225 Difference]: With dead ends: 84 [2021-10-21 20:05:29,794 INFO L226 Difference]: Without dead ends: 84 [2021-10-21 20:05:29,795 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 226.7ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:05:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-21 20:05:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-21 20:05:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 68 states have internal predecessors, (83), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-21 20:05:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2021-10-21 20:05:29,801 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 105 transitions. Word has length 26 [2021-10-21 20:05:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:05:29,802 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 105 transitions. [2021-10-21 20:05:29,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 20:05:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 105 transitions. [2021-10-21 20:05:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 20:05:29,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:05:29,804 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:29,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:05:30,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:05:30,015 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 20:05:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:30,016 INFO L82 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-10-21 20:05:30,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:05:30,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502747024] [2021-10-21 20:05:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:30,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:05:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:05:30,018 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:05:30,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 20:05:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:30,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 20:05:30,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:30,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:39,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:05:39,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502747024] [2021-10-21 20:05:39,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-21 20:05:39,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2054978333] [2021-10-21 20:05:39,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:39,487 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 20:05:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 20:05:39,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 20:05:39,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-21 20:05:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:39,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:05:39,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:39,949 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:05:39,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-21 20:05:47,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:47,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:05:58,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-10-21 20:05:58,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76578553] [2021-10-21 20:05:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:58,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:05:58,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:05:58,719 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:05:58,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 20:05:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:59,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:05:59,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:05:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:05:59,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:06:12,639 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 20:06:12,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 119 [2021-10-21 20:06:13,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-10-21 20:06:13,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:06:13,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 20:06:13,434 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 20:06:13,434 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 20:06:13,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 20:06:13,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,449 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,449 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,449 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,449 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 20:06:13,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 20:06:13,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 20:06:13,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 20:06:13,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 20:06:13,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 20:06:13,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 20:06:13,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 20:06:13,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-21 20:06:13,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-21 20:06:13,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-21 20:06:13,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-21 20:06:13,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:06:13,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:13,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-10-21 20:06:13,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-21 20:06:14,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:06:14,100 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:06:14,104 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 20:06:14,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:06:14 BoogieIcfgContainer [2021-10-21 20:06:14,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:06:14,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:06:14,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:06:14,117 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:06:14,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:03:30" (3/4) ... [2021-10-21 20:06:14,127 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:06:14,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:06:14,129 INFO L168 Benchmark]: Toolchain (without parser) took 166442.27 ms. Allocated memory was 52.4 MB in the beginning and 96.5 MB in the end (delta: 44.0 MB). Free memory was 27.4 MB in the beginning and 51.1 MB in the end (delta: -23.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:14,129 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:06:14,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.12 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.2 MB in the beginning and 40.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:14,131 INFO L168 Benchmark]: Boogie Preprocessor took 112.38 ms. Allocated memory is still 65.0 MB. Free memory was 40.4 MB in the beginning and 35.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:14,132 INFO L168 Benchmark]: RCFGBuilder took 1582.29 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 41.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:14,132 INFO L168 Benchmark]: TraceAbstraction took 164019.90 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 41.4 MB in the beginning and 51.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:14,133 INFO L168 Benchmark]: Witness Printer took 10.50 ms. Allocated memory is still 96.5 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:06:14,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 711.12 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.2 MB in the beginning and 40.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.38 ms. Allocated memory is still 65.0 MB. Free memory was 40.4 MB in the beginning and 35.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1582.29 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 41.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 164019.90 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 41.4 MB in the beginning and 51.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * Witness Printer took 10.50 ms. Allocated memory is still 96.5 MB. Free memory is still 51.1 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: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] COND TRUE \read(**array) [L764] struct A18 *p; [L765] int i=0; [L766] int j; [L767] COND TRUE i=0) [L776] free(array) [L776] free(array) [L776] free(array) [L781] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 163922.6ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 28.4ms, AutomataDifference: 96936.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 1023 SDslu, 1499 SDs, 0 SdLazy, 1276 SolverSat, 180 SolverUnsat, 28 SolverUnknown, 0 SolverNotchecked, 62244.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 329 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 43932.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 141.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 424 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 102.4ms SsaConstructionTime, 257.3ms SatisfiabilityAnalysisTime, 18770.3ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 376 ConstructedInterpolants, 23 QuantifiedInterpolants, 1758 SizeOfPredicates, 12 NumberOfNonLiveVariables, 814 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 32/48 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 20:06:14,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1fc78b-d439-43c3-a899-789b95bac489/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...