./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.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_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/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_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/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_96510772-75df-4d3f-aa6a-97b0325f9ac8/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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ................................................................................................................................... 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_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/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_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/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_96510772-75df-4d3f-aa6a-97b0325f9ac8/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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:10:12,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:10:12,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:10:12,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:10:12,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:10:12,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:10:12,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:10:12,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:10:12,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:10:12,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:10:12,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:10:12,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:10:12,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:10:12,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:10:12,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:10:12,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:10:12,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:10:12,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:10:12,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:10:12,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:10:12,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:10:12,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:10:12,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:10:12,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:10:12,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:10:12,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:10:12,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:10:12,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:10:12,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:10:12,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:10:12,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:10:12,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:10:12,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:10:12,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:10:13,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:10:13,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:10:13,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:10:13,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:10:13,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:10:13,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:10:13,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:10:13,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:10:13,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:10:13,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:10:13,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:10:13,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:10:13,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:10:13,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:10:13,052 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:10:13,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:10:13,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:10:13,053 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:10:13,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:10:13,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:10:13,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:10:13,055 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:10:13,055 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:10:13,055 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:10:13,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:10:13,056 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:10:13,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:10:13,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:10:13,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:10:13,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:10:13,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:10:13,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:10:13,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:10:13,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:10:13,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:10:13,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:10:13,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:10:13,060 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_96510772-75df-4d3f-aa6a-97b0325f9ac8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-21 19:10:13,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:10:13,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:10:13,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:10:13,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:10:13,401 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:10:13,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-21 19:10:13,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/d37330988/0ab63ea9dd3749cf89cdad823a3ca6dd/FLAGdfb514420 [2021-10-21 19:10:14,040 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:10:14,041 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-21 19:10:14,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/d37330988/0ab63ea9dd3749cf89cdad823a3ca6dd/FLAGdfb514420 [2021-10-21 19:10:14,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/d37330988/0ab63ea9dd3749cf89cdad823a3ca6dd [2021-10-21 19:10:14,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:10:14,336 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:10:14,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:10:14,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:10:14,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:10:14,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:10:14" (1/1) ... [2021-10-21 19:10:14,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306de1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:14, skipping insertion in model container [2021-10-21 19:10:14,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:10:14" (1/1) ... [2021-10-21 19:10:14,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:10:14,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:10:14,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:10:14,923 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 19:10:14,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78db6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:14, skipping insertion in model container [2021-10-21 19:10:14,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:10:14,925 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:10:14,929 INFO L168 Benchmark]: Toolchain (without parser) took 590.58 ms. Allocated memory is still 111.1 MB. Free memory was 77.0 MB in the beginning and 80.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:10:14,930 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:10:14,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.98 ms. Allocated memory is still 111.1 MB. Free memory was 77.0 MB in the beginning and 80.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:10:14,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 586.98 ms. Allocated memory is still 111.1 MB. Free memory was 77.0 MB in the beginning and 80.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 6.3 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 19:10:17,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:10:17,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:10:17,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:10:17,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:10:17,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:10:17,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:10:17,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:10:17,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:10:17,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:10:17,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:10:17,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:10:17,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:10:17,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:10:17,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:10:17,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:10:17,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:10:17,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:10:17,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:10:17,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:10:17,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:10:17,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:10:17,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:10:17,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:10:17,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:10:17,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:10:17,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:10:17,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:10:17,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:10:17,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:10:17,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:10:17,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:10:17,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:10:17,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:10:17,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:10:17,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:10:17,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:10:17,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:10:17,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:10:17,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:10:17,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:10:17,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:10:17,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:10:17,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:10:17,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:10:17,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:10:17,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:10:17,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:10:17,624 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:10:17,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:10:17,625 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:10:17,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:10:17,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:10:17,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:10:17,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:10:17,627 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:10:17,627 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:10:17,627 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:10:17,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:10:17,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:10:17,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:10:17,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:10:17,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:10:17,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:10:17,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:10:17,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:10:17,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:10:17,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:10:17,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:10:17,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:10:17,631 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:10:17,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:10:17,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:10:17,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:10:17,632 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_96510772-75df-4d3f-aa6a-97b0325f9ac8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-21 19:10:17,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:10:18,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:10:18,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:10:18,019 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:10:18,020 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:10:18,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-21 19:10:18,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/f0bd698ec/e9365bc941a34d6b81e70e26e0172d32/FLAGec4f32027 [2021-10-21 19:10:18,838 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:10:18,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-21 19:10:18,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/f0bd698ec/e9365bc941a34d6b81e70e26e0172d32/FLAGec4f32027 [2021-10-21 19:10:19,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/data/f0bd698ec/e9365bc941a34d6b81e70e26e0172d32 [2021-10-21 19:10:19,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:10:19,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:10:19,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:10:19,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:10:19,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:10:19,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:10:19" (1/1) ... [2021-10-21 19:10:19,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dedc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:19, skipping insertion in model container [2021-10-21 19:10:19,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:10:19" (1/1) ... [2021-10-21 19:10:19,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:10:19,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:10:19,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:10:19,749 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:10:19,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:10:19,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:10:19,870 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:10:19,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:10:20,000 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:10:20,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20 WrapperNode [2021-10-21 19:10:20,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:10:20,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:10:20,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:10:20,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:10:20,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:10:20,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:10:20,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:10:20,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:10:20,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (1/1) ... [2021-10-21 19:10:20,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:10:20,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:10:20,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:10:20,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:10:20,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:10:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:10:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:10:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:10:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:10:20,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:10:20,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:10:20,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:10:20,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:10:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:10:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:10:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:10:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:10:20,221 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:10:20,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:10:20,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:10:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:10:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:10:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:10:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:10:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:10:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:10:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:10:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:10:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:10:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:10:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:10:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:10:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:10:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:10:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:10:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:10:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:10:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:10:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:10:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:10:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:10:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-10-21 19:10:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-10-21 19:10:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-10-21 19:10:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2021-10-21 19:10:20,229 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:10:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:10:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:10:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:10:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:10:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:10:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:10:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:10:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:10:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:10:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:10:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:10:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:10:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:10:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:10:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:10:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:10:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:10:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:10:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:10:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:10:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:10:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:10:20,238 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:10:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:10:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:10:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:10:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:10:20,241 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:10:20,242 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:10:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:10:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:10:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:10:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:10:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:10:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:10:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:10:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:10:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:10:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:10:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:10:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:10:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:10:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:10:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:10:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:10:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:10:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:10:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:10:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:10:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:10:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:10:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:10:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:10:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:10:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:10:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:10:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:10:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:10:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:10:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:10:20,265 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:10:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:10:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:10:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:10:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:10:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:10:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:10:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:10:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:10:20,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:10:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:10:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:10:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:10:20,919 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:10:21,371 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:10:21,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:10:21,770 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 19:10:21,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:10:21 BoogieIcfgContainer [2021-10-21 19:10:21,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:10:21,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:10:21,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:10:21,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:10:21,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:10:19" (1/3) ... [2021-10-21 19:10:21,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412de178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:10:21, skipping insertion in model container [2021-10-21 19:10:21,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:10:20" (2/3) ... [2021-10-21 19:10:21,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412de178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:10:21, skipping insertion in model container [2021-10-21 19:10:21,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:10:21" (3/3) ... [2021-10-21 19:10:21,788 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2021-10-21 19:10:21,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:10:21,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-21 19:10:21,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:10:21,869 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:10:21,869 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-21 19:10:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:10:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:10:21,895 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:21,895 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:10:21,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:21,901 INFO L82 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2021-10-21 19:10:21,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:21,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110464414] [2021-10-21 19:10:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:21,915 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:21,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:21,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:21,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:10:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:22,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:10:22,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:22,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:22,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:22,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110464414] [2021-10-21 19:10:22,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110464414] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:22,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:22,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:10:22,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502212015] [2021-10-21 19:10:22,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:10:22,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:10:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:22,505 INFO L87 Difference]: Start difference. First operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:10:22,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:22,601 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2021-10-21 19:10:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:10:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-21 19:10:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:22,614 INFO L225 Difference]: With dead ends: 76 [2021-10-21 19:10:22,614 INFO L226 Difference]: Without dead ends: 73 [2021-10-21 19:10:22,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-21 19:10:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-10-21 19:10:22,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.375) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-21 19:10:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-21 19:10:22,664 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2021-10-21 19:10:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:22,665 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-21 19:10:22,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:10:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-21 19:10:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:10:22,668 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:22,668 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:10:22,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:22,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:22,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2021-10-21 19:10:22,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:22,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788640909] [2021-10-21 19:10:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:22,891 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:22,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:22,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:22,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:10:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:23,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:10:23,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:23,163 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-21 19:10:23,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-21 19:10:23,322 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 7 treesize of output 5 [2021-10-21 19:10:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:23,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:23,603 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 10 treesize of output 8 [2021-10-21 19:10:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:23,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:23,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788640909] [2021-10-21 19:10:23,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788640909] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:23,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:23,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:10:23,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017825051] [2021-10-21 19:10:23,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:10:23,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:10:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:23,719 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-21 19:10:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:23,905 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-10-21 19:10:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:10:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-10-21 19:10:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:23,907 INFO L225 Difference]: With dead ends: 92 [2021-10-21 19:10:23,907 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:10:23,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 56.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:10:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:10:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2021-10-21 19:10:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 58 states have internal predecessors, (67), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-21 19:10:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2021-10-21 19:10:23,923 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2021-10-21 19:10:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:23,923 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2021-10-21 19:10:23,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-21 19:10:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2021-10-21 19:10:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:10:23,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:23,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:10:23,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:24,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:24,144 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:24,144 INFO L82 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2021-10-21 19:10:24,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:24,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876566591] [2021-10-21 19:10:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:24,145 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:24,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:24,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:24,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:10:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:24,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:10:24,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:24,374 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:10:24,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 19:10:24,451 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 5 treesize of output 3 [2021-10-21 19:10:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:24,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:24,939 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 8 treesize of output 6 [2021-10-21 19:10:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:25,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:25,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876566591] [2021-10-21 19:10:25,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876566591] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:25,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:25,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:10:25,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638171794] [2021-10-21 19:10:25,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:10:25,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:10:25,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:10:25,183 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-21 19:10:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:25,433 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2021-10-21 19:10:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:10:25,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-10-21 19:10:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:25,437 INFO L225 Difference]: With dead ends: 110 [2021-10-21 19:10:25,437 INFO L226 Difference]: Without dead ends: 100 [2021-10-21 19:10:25,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:10:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-21 19:10:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2021-10-21 19:10:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.375) internal successors, (77), 66 states have internal predecessors, (77), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-21 19:10:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-10-21 19:10:25,465 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2021-10-21 19:10:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:25,466 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-10-21 19:10:25,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-21 19:10:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-10-21 19:10:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:10:25,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:25,468 INFO L512 BasicCegarLoop]: trace histogram [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 19:10:25,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:25,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:25,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:25,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:25,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2021-10-21 19:10:25,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:25,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208773907] [2021-10-21 19:10:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:25,681 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:25,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:25,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:25,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:10:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:25,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:10:25,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:25,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:26,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:26,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208773907] [2021-10-21 19:10:26,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208773907] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:26,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:26,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:10:26,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598988734] [2021-10-21 19:10:26,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:10:26,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:26,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:10:26,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:26,073 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:10:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:26,099 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2021-10-21 19:10:26,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:10:26,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-21 19:10:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:26,102 INFO L225 Difference]: With dead ends: 89 [2021-10-21 19:10:26,102 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:10:26,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:10:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-10-21 19:10:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 65 states have internal predecessors, (75), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-21 19:10:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2021-10-21 19:10:26,111 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2021-10-21 19:10:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:26,111 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2021-10-21 19:10:26,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:10:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2021-10-21 19:10:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:10:26,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:26,112 INFO L512 BasicCegarLoop]: trace histogram [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 19:10:26,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:26,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:26,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:26,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2021-10-21 19:10:26,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:26,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211964586] [2021-10-21 19:10:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:26,325 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:26,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:26,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:26,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:10:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:26,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:10:26,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:26,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:26,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:26,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:26,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211964586] [2021-10-21 19:10:26,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211964586] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:26,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:26,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-21 19:10:26,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973693544] [2021-10-21 19:10:26,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:10:26,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:10:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:10:26,990 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:10:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:27,270 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-10-21 19:10:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:10:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-10-21 19:10:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:27,273 INFO L225 Difference]: With dead ends: 95 [2021-10-21 19:10:27,273 INFO L226 Difference]: Without dead ends: 95 [2021-10-21 19:10:27,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:10:27,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-21 19:10:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2021-10-21 19:10:27,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 64 states have internal predecessors, (73), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-21 19:10:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-21 19:10:27,281 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2021-10-21 19:10:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:27,281 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-21 19:10:27,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:10:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-21 19:10:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:10:27,283 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:27,283 INFO L512 BasicCegarLoop]: trace histogram [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 19:10:27,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:27,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:27,495 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:27,496 INFO L82 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2021-10-21 19:10:27,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:27,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922028115] [2021-10-21 19:10:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:27,496 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:27,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:27,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:27,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:10:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:27,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:10:27,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:27,746 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 19:10:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:27,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:27,924 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:27,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922028115] [2021-10-21 19:10:27,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922028115] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:27,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:27,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-10-21 19:10:27,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620211154] [2021-10-21 19:10:27,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:10:27,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:27,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:10:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:10:27,930 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:10:28,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:28,108 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2021-10-21 19:10:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:10:28,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-21 19:10:28,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:28,110 INFO L225 Difference]: With dead ends: 91 [2021-10-21 19:10:28,110 INFO L226 Difference]: Without dead ends: 91 [2021-10-21 19:10:28,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 33.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:10:28,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-21 19:10:28,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-10-21 19:10:28,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 64 states have internal predecessors, (72), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-21 19:10:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-21 19:10:28,118 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2021-10-21 19:10:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:28,118 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-21 19:10:28,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:10:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-21 19:10:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:10:28,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:28,120 INFO L512 BasicCegarLoop]: trace histogram [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 19:10:28,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:28,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:28,334 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:28,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2021-10-21 19:10:28,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:28,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616210927] [2021-10-21 19:10:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:28,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:28,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:28,337 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:28,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:10:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:28,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:10:28,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:28,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:28,766 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:28,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616210927] [2021-10-21 19:10:28,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616210927] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:28,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:28,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:10:28,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590517488] [2021-10-21 19:10:28,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:10:28,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:28,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:10:28,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:28,768 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:10:28,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:28,792 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-10-21 19:10:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:10:28,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-21 19:10:28,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:28,794 INFO L225 Difference]: With dead ends: 62 [2021-10-21 19:10:28,794 INFO L226 Difference]: Without dead ends: 58 [2021-10-21 19:10:28,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:10:28,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-21 19:10:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-21 19:10:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-21 19:10:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-10-21 19:10:28,799 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2021-10-21 19:10:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:28,799 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-10-21 19:10:28,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:10:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-10-21 19:10:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 19:10:28,800 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:28,801 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-10-21 19:10:28,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:29,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:29,001 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe1_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:29,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:29,002 INFO L82 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2021-10-21 19:10:29,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:29,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499560421] [2021-10-21 19:10:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:29,002 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:29,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:29,003 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:29,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:10:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:29,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:10:29,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:29,302 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-21 19:10:29,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-21 19:10:29,483 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 19:10:29,484 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 15 treesize of output 20 [2021-10-21 19:10:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:29,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:29,870 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:29,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499560421] [2021-10-21 19:10:29,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499560421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:29,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:29,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-10-21 19:10:29,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43728863] [2021-10-21 19:10:29,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:10:29,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:10:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:10:29,873 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-21 19:10:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:30,257 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2021-10-21 19:10:30,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:10:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-10-21 19:10:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:30,259 INFO L225 Difference]: With dead ends: 62 [2021-10-21 19:10:30,259 INFO L226 Difference]: Without dead ends: 62 [2021-10-21 19:10:30,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 10 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 290.6ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:10:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-21 19:10:30,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2021-10-21 19:10:30,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-21 19:10:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-21 19:10:30,264 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2021-10-21 19:10:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:30,264 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-21 19:10:30,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-21 19:10:30,265 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-21 19:10:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 19:10:30,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:30,266 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-10-21 19:10:30,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:30,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:30,477 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe1_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:30,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:30,478 INFO L82 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2021-10-21 19:10:30,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:30,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976131516] [2021-10-21 19:10:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:30,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:30,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:30,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:30,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:10:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:30,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:10:30,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:30,743 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:10:30,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 19:10:35,004 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:10:35,004 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 12 treesize of output 14 [2021-10-21 19:10:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:35,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:37,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:37,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976131516] [2021-10-21 19:10:37,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976131516] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:37,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:37,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-21 19:10:37,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492873949] [2021-10-21 19:10:37,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:10:37,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:10:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-10-21 19:10:37,668 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-21 19:10:44,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:44,005 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-10-21 19:10:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:10:44,006 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-10-21 19:10:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:44,007 INFO L225 Difference]: With dead ends: 55 [2021-10-21 19:10:44,007 INFO L226 Difference]: Without dead ends: 55 [2021-10-21 19:10:44,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 6689.7ms TimeCoverageRelationStatistics Valid=123, Invalid=381, Unknown=2, NotChecked=0, Total=506 [2021-10-21 19:10:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-21 19:10:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-21 19:10:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-21 19:10:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-10-21 19:10:44,013 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2021-10-21 19:10:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:44,014 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-10-21 19:10:44,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-21 19:10:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-10-21 19:10:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 19:10:44,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:44,015 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-10-21 19:10:44,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:44,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:10:44,226 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:10:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:44,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2021-10-21 19:10:44,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:10:44,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3275132] [2021-10-21 19:10:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:44,228 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:10:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:10:44,231 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:10:44,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:10:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:44,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 19:10:44,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:44,552 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-21 19:10:44,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-21 19:10:44,656 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 7 treesize of output 5 [2021-10-21 19:10:44,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-10-21 19:10:45,069 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-21 19:10:45,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2021-10-21 19:10:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:45,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:10:45,673 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 9 treesize of output 7 [2021-10-21 19:10:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:45,842 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:10:45,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3275132] [2021-10-21 19:10:45,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3275132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:45,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:10:45,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-10-21 19:10:45,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043729951] [2021-10-21 19:10:45,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:10:45,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:10:45,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:10:45,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:10:45,844 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-21 19:12:02,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:02,590 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-10-21 19:12:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:12:02,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-10-21 19:12:02,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:02,592 INFO L225 Difference]: With dead ends: 57 [2021-10-21 19:12:02,592 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:12:02,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10659.8ms TimeCoverageRelationStatistics Valid=96, Invalid=320, Unknown=4, NotChecked=0, Total=420 [2021-10-21 19:12:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:12:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-21 19:12:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:12:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-10-21 19:12:02,596 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 29 [2021-10-21 19:12:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:02,596 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-10-21 19:12:02,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-21 19:12:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-10-21 19:12:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-21 19:12:02,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:02,598 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:02,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:02,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:12:02,810 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:12:02,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:02,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1970951303, now seen corresponding path program 1 times [2021-10-21 19:12:02,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:12:02,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9772575] [2021-10-21 19:12:02,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:02,811 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:12:02,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:12:02,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:12:02,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-21 19:12:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:03,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:12:03,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:12:03,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:12:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:12:03,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:12:03,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9772575] [2021-10-21 19:12:03,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9772575] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:03,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:12:03,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:12:03,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845182830] [2021-10-21 19:12:03,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:12:03,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:12:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:12:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:03,409 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-21 19:12:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:03,421 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-10-21 19:12:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:12:03,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2021-10-21 19:12:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:03,422 INFO L225 Difference]: With dead ends: 42 [2021-10-21 19:12:03,423 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:12:03,423 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:12:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-21 19:12:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 19:12:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-10-21 19:12:03,426 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 37 [2021-10-21 19:12:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:03,426 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-10-21 19:12:03,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-21 19:12:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-10-21 19:12:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 19:12:03,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:03,428 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:03,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:03,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:12:03,629 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:12:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:03,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1874562474, now seen corresponding path program 1 times [2021-10-21 19:12:03,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:12:03,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83144278] [2021-10-21 19:12:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:03,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:12:03,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:12:03,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:12:03,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-21 19:12:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:12:03,980 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:12:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:12:04,074 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:12:04,074 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:12:04,075 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:12:04,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:12:04,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:12:04,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:12:04,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:12:04,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:12:04,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:12:04,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:12:04,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:12:04,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:12:04,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:12:04,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-21 19:12:04,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-21 19:12:04,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-10-21 19:12:04,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-10-21 19:12:04,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:12:04,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:04,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:12:04,312 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:12:04,326 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:12:04,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:12:04 BoogieIcfgContainer [2021-10-21 19:12:04,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:12:04,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:12:04,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:12:04,350 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:12:04,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:10:21" (3/4) ... [2021-10-21 19:12:04,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:12:04,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:12:04,355 INFO L168 Benchmark]: Toolchain (without parser) took 105275.91 ms. Allocated memory was 54.5 MB in the beginning and 107.0 MB in the end (delta: 52.4 MB). Free memory was 31.5 MB in the beginning and 61.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:04,355 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:12:04,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.83 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.3 MB in the beginning and 48.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:04,358 INFO L168 Benchmark]: Boogie Preprocessor took 103.02 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 43.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:04,358 INFO L168 Benchmark]: RCFGBuilder took 1672.58 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 29.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:04,358 INFO L168 Benchmark]: TraceAbstraction took 102568.75 ms. Allocated memory was 69.2 MB in the beginning and 107.0 MB in the end (delta: 37.7 MB). Free memory was 28.7 MB in the beginning and 61.1 MB in the end (delta: -32.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:04,359 INFO L168 Benchmark]: Witness Printer took 4.02 ms. Allocated memory is still 107.0 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:12:04,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 917.83 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.3 MB in the beginning and 48.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.02 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 43.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1672.58 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 29.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 102568.75 ms. Allocated memory was 69.2 MB in the beginning and 107.0 MB in the end (delta: 37.7 MB). Free memory was 28.7 MB in the beginning and 61.1 MB in the end (delta: -32.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.02 ms. Allocated memory is still 107.0 MB. Free memory is still 61.1 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L791] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L784] CALL, EXPR probe1_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe1_6(&a6)=0] [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L786] FCALL disconnect_2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L788] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L791] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] - 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: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: 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: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 102449.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 28.7ms, AutomataDifference: 84599.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 549 SDtfs, 753 SDslu, 1159 SDs, 0 SdLazy, 799 SolverSat, 254 SolverUnsat, 34 SolverUnknown, 0 SolverNotchecked, 72516.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 448 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 18038.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 118.8ms AutomataMinimizationTime, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 124.3ms SsaConstructionTime, 412.0ms SatisfiabilityAnalysisTime, 12112.7ms InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 528 ConstructedInterpolants, 45 QuantifiedInterpolants, 3205 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1231 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:12:04,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96510772-75df-4d3f-aa6a-97b0325f9ac8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...