./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:58:29,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:58:29,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:58:29,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:58:29,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:58:29,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:58:29,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:58:29,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:58:29,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:58:29,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:58:29,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:58:29,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:58:29,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:58:29,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:58:29,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:58:29,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:58:29,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:58:29,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:58:29,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:58:29,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:58:29,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:58:29,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:58:29,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:58:29,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:58:29,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:58:29,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:58:29,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:58:29,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:58:29,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:58:29,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:58:29,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:58:29,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:58:29,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:58:29,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:58:29,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:58:29,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:58:29,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:58:29,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:58:29,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:58:29,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:58:29,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:58:29,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-02 22:58:29,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:58:29,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:58:29,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:58:29,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:58:29,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:58:29,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:58:29,517 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:58:29,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:58:29,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:58:29,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:58:29,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:58:29,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:58:29,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:58:29,520 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 22:58:29,520 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 22:58:29,520 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 22:58:29,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:58:29,521 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 22:58:29,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:58:29,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:58:29,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:58:29,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:58:29,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:58:29,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:58:29,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:58:29,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:58:29,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:58:29,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:58:29,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:58:29,524 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_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2021-11-02 22:58:29,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:58:29,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:58:29,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:58:29,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:58:29,821 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:58:29,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-02 22:58:29,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/ba1384fd3/36b2f785a3264c58b7adac01ecbe4e48/FLAGd15571ad6 [2021-11-02 22:58:30,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:58:30,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-02 22:58:30,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/ba1384fd3/36b2f785a3264c58b7adac01ecbe4e48/FLAGd15571ad6 [2021-11-02 22:58:30,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/ba1384fd3/36b2f785a3264c58b7adac01ecbe4e48 [2021-11-02 22:58:30,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:58:30,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 22:58:30,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:30,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:58:30,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:58:30,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:30" (1/1) ... [2021-11-02 22:58:30,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cc47f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:30, skipping insertion in model container [2021-11-02 22:58:30,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:30" (1/1) ... [2021-11-02 22:58:30,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:58:30,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:58:31,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:31,106 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) [2021-11-02 22:58:31,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5419a79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:31, skipping insertion in model container [2021-11-02 22:58:31,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:31,107 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-02 22:58:31,109 INFO L168 Benchmark]: Toolchain (without parser) took 423.55 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.8 MB in the beginning and 79.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:58:31,110 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:58:31,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 79.3 MB in the end (delta: -32.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:58:31,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 79.3 MB in the end (delta: -32.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:58:33,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:58:33,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:58:33,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:58:33,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:58:33,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:58:33,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:58:33,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:58:33,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:58:33,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:58:33,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:58:33,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:58:33,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:58:33,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:58:33,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:58:33,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:58:33,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:58:33,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:58:33,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:58:33,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:58:33,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:58:33,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:58:33,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:58:33,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:58:33,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:58:33,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:58:33,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:58:33,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:58:33,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:58:33,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:58:33,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:58:33,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:58:33,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:58:33,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:58:33,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:58:33,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:58:33,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:58:33,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:58:33,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:58:33,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:58:33,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:58:33,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-02 22:58:33,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:58:33,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:58:33,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:58:33,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:58:33,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:58:33,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:58:33,341 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:58:33,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:58:33,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:58:33,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:58:33,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:58:33,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:58:33,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:58:33,344 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 22:58:33,344 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 22:58:33,344 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 22:58:33,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:58:33,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 22:58:33,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-02 22:58:33,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-02 22:58:33,346 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:58:33,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:58:33,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:58:33,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:58:33,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:58:33,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:58:33,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:58:33,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:58:33,348 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-02 22:58:33,348 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-02 22:58:33,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:58:33,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-02 22:58:33,349 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_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2021-11-02 22:58:33,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:58:33,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:58:33,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:58:33,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:58:33,805 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:58:33,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-02 22:58:33,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/4afe6e8ec/4e0aa912f234495f9c5e59e3cb045856/FLAG3fbebe183 [2021-11-02 22:58:34,507 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:58:34,507 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-02 22:58:34,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/4afe6e8ec/4e0aa912f234495f9c5e59e3cb045856/FLAG3fbebe183 [2021-11-02 22:58:34,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/data/4afe6e8ec/4e0aa912f234495f9c5e59e3cb045856 [2021-11-02 22:58:34,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:58:34,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 22:58:34,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:34,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:58:34,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:58:34,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:34" (1/1) ... [2021-11-02 22:58:34,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eada104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:34, skipping insertion in model container [2021-11-02 22:58:34,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:34" (1/1) ... [2021-11-02 22:58:34,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:58:34,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:58:35,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:35,188 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-02 22:58:35,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:58:35,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:35,251 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:58:35,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:35,338 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:58:35,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35 WrapperNode [2021-11-02 22:58:35,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:35,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:58:35,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:58:35,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:58:35,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:58:35,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:58:35,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:58:35,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:58:35,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (1/1) ... [2021-11-02 22:58:35,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:58:35,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:58:35,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:58:35,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:58:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-02 22:58:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:58:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 22:58:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-02 22:58:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-02 22:58:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-02 22:58:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2021-11-02 22:58:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure freeData [2021-11-02 22:58:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2021-11-02 22:58:35,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-02 22:58:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-02 22:58:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-02 22:58:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-02 22:58:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-02 22:58:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-02 22:58:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:58:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-02 22:58:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-02 22:58:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-02 22:58:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-02 22:58:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-02 22:58:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-02 22:58:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-02 22:58:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-02 22:58:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-02 22:58:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-02 22:58:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-02 22:58:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-02 22:58:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-02 22:58:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-02 22:58:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-02 22:58:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-02 22:58:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-02 22:58:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-02 22:58:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-02 22:58:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-02 22:58:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-02 22:58:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-02 22:58:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-02 22:58:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-02 22:58:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-02 22:58:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-02 22:58:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-02 22:58:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-02 22:58:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-02 22:58:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-02 22:58:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-02 22:58:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-11-02 22:58:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-02 22:58:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-02 22:58:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-02 22:58:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-02 22:58:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-02 22:58:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-02 22:58:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-02 22:58:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-02 22:58:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-02 22:58:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-02 22:58:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-02 22:58:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-02 22:58:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-02 22:58:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-02 22:58:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-02 22:58:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-02 22:58:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-02 22:58:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-02 22:58:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-02 22:58:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-02 22:58:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-02 22:58:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-02 22:58:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-02 22:58:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-02 22:58:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-02 22:58:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-02 22:58:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-02 22:58:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-02 22:58:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2021-11-02 22:58:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:58:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-02 22:58:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:58:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:58:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-02 22:58:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure freeData [2021-11-02 22:58:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:58:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure append [2021-11-02 22:58:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-02 22:58:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:58:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-02 22:58:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-02 22:58:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:58:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 22:58:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-02 22:58:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-02 22:58:36,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:58:36,768 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 22:58:36,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:36 BoogieIcfgContainer [2021-11-02 22:58:36,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:58:36,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:58:36,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:58:36,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:58:36,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:58:34" (1/3) ... [2021-11-02 22:58:36,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d82112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:36, skipping insertion in model container [2021-11-02 22:58:36,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:35" (2/3) ... [2021-11-02 22:58:36,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d82112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:36, skipping insertion in model container [2021-11-02 22:58:36,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:36" (3/3) ... [2021-11-02 22:58:36,775 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-2.i [2021-11-02 22:58:36,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:58:36,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2021-11-02 22:58:36,818 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:58:36,824 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:58:36,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2021-11-02 22:58:36,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 96 states have (on average 2.1145833333333335) internal successors, (203), 187 states have internal predecessors, (203), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:58:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-02 22:58:36,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:36,850 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:36,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr10REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2135423205, now seen corresponding path program 1 times [2021-11-02 22:58:36,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:36,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834829518] [2021-11-02 22:58:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:36,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:36,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:36,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:36,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-02 22:58:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:37,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-02 22:58:37,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:37,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:58:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:37,162 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:58:37,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834829518] [2021-11-02 22:58:37,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834829518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:37,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:37,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 22:58:37,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723510915] [2021-11-02 22:58:37,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:58:37,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:58:37,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:58:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:58:37,191 INFO L87 Difference]: Start difference. First operand has 199 states, 96 states have (on average 2.1145833333333335) internal successors, (203), 187 states have internal predecessors, (203), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:37,235 INFO L93 Difference]: Finished difference Result 199 states and 210 transitions. [2021-11-02 22:58:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:58:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2021-11-02 22:58:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:37,252 INFO L225 Difference]: With dead ends: 199 [2021-11-02 22:58:37,253 INFO L226 Difference]: Without dead ends: 196 [2021-11-02 22:58:37,254 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:58:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-02 22:58:37,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-11-02 22:58:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 94 states have (on average 2.0851063829787235) internal successors, (196), 185 states have internal predecessors, (196), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-02 22:58:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 207 transitions. [2021-11-02 22:58:37,335 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 207 transitions. Word has length 8 [2021-11-02 22:58:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:37,335 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 207 transitions. [2021-11-02 22:58:37,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 207 transitions. [2021-11-02 22:58:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-02 22:58:37,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:37,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:37,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:58:37,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:58:37,548 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting appendErr0REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1773696151, now seen corresponding path program 1 times [2021-11-02 22:58:37,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:37,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943806096] [2021-11-02 22:58:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:37,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:37,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:37,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:37,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-02 22:58:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:37,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 22:58:37,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:37,790 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 [2021-11-02 22:58:37,854 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 22:58:37,854 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 17 treesize of output 22 [2021-11-02 22:58:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:37,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:58:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:37,993 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:58:37,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943806096] [2021-11-02 22:58:37,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943806096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:37,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:37,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-02 22:58:37,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759811503] [2021-11-02 22:58:37,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:58:37,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:58:37,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:58:37,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:58:37,997 INFO L87 Difference]: Start difference. First operand 196 states and 207 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:38,916 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2021-11-02 22:58:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:58:38,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-02 22:58:38,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:38,920 INFO L225 Difference]: With dead ends: 190 [2021-11-02 22:58:38,920 INFO L226 Difference]: Without dead ends: 190 [2021-11-02 22:58:38,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-02 22:58:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-02 22:58:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 94 states have (on average 2.021276595744681) internal successors, (190), 179 states have internal predecessors, (190), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-02 22:58:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 201 transitions. [2021-11-02 22:58:38,950 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 201 transitions. Word has length 9 [2021-11-02 22:58:38,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:38,950 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 201 transitions. [2021-11-02 22:58:38,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 201 transitions. [2021-11-02 22:58:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-02 22:58:38,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:38,951 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:38,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:58:39,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:58:39,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting appendErr1REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:39,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1773696152, now seen corresponding path program 1 times [2021-11-02 22:58:39,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:39,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347712650] [2021-11-02 22:58:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:39,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:39,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:39,161 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:39,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-02 22:58:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:39,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 22:58:39,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:39,328 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 [2021-11-02 22:58:39,350 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 [2021-11-02 22:58:39,452 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-02 22:58:39,453 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 27 treesize of output 29 [2021-11-02 22:58:39,466 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-02 22:58:39,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-11-02 22:58:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:39,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:58:41,940 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_append_~node~0.base_16 (_ BitVec 32))) (or (let ((.cse0 (bvadd (_ bv4 32) |c_main_~#list~0.offset|))) (and (bvule .cse0 (select (store |c_#length| v_append_~node~0.base_16 (_ bv8 32)) |c_main_~#list~0.base|)) (bvule |c_main_~#list~0.offset| .cse0))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_append_~node~0.base_16)))))) is different from false [2021-11-02 22:58:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:42,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:58:42,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347712650] [2021-11-02 22:58:42,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347712650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:42,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:42,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-02 22:58:42,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214056251] [2021-11-02 22:58:42,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 22:58:42,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:58:42,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:58:42,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2021-11-02 22:58:42,012 INFO L87 Difference]: Start difference. First operand 190 states and 201 transitions. Second operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:44,586 INFO L93 Difference]: Finished difference Result 206 states and 221 transitions. [2021-11-02 22:58:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:58:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-02 22:58:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:44,589 INFO L225 Difference]: With dead ends: 206 [2021-11-02 22:58:44,590 INFO L226 Difference]: Without dead ends: 206 [2021-11-02 22:58:44,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=21, Invalid=38, Unknown=1, NotChecked=12, Total=72 [2021-11-02 22:58:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-02 22:58:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2021-11-02 22:58:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 96 states have (on average 1.9895833333333333) internal successors, (191), 180 states have internal predecessors, (191), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:58:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2021-11-02 22:58:44,604 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 9 [2021-11-02 22:58:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:44,605 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2021-11-02 22:58:44,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2021-11-02 22:58:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-02 22:58:44,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:44,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:44,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:58:44,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:58:44,818 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting appendErr2REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash -849993922, now seen corresponding path program 1 times [2021-11-02 22:58:44,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:44,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975847112] [2021-11-02 22:58:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:44,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:44,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:44,821 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:44,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-02 22:58:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:44,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:58:44,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:44,974 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 [2021-11-02 22:58:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:44,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:58:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:45,025 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:58:45,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975847112] [2021-11-02 22:58:45,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975847112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:45,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:45,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 22:58:45,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105165213] [2021-11-02 22:58:45,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:58:45,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:58:45,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:58:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:58:45,028 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:45,454 INFO L93 Difference]: Finished difference Result 190 states and 202 transitions. [2021-11-02 22:58:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:58:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-02 22:58:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:45,457 INFO L225 Difference]: With dead ends: 190 [2021-11-02 22:58:45,457 INFO L226 Difference]: Without dead ends: 190 [2021-11-02 22:58:45,457 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:58:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-02 22:58:45,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-02 22:58:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 96 states have (on average 1.96875) internal successors, (189), 178 states have internal predecessors, (189), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:58:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 202 transitions. [2021-11-02 22:58:45,483 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 202 transitions. Word has length 10 [2021-11-02 22:58:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:45,483 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 202 transitions. [2021-11-02 22:58:45,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:45,484 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 202 transitions. [2021-11-02 22:58:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-02 22:58:45,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:45,485 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:45,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:58:45,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:58:45,696 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting appendErr3REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -849993921, now seen corresponding path program 1 times [2021-11-02 22:58:45,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:45,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600206950] [2021-11-02 22:58:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:45,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:45,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:45,698 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:45,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-02 22:58:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:45,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:58:45,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:45,866 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 [2021-11-02 22:58:45,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:45,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:58:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:45,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:58:45,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600206950] [2021-11-02 22:58:45,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600206950] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:45,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:45,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-02 22:58:45,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130764692] [2021-11-02 22:58:45,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:58:45,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:58:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:58:45,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:58:45,988 INFO L87 Difference]: Start difference. First operand 190 states and 202 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:46,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:46,890 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2021-11-02 22:58:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:58:46,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-02 22:58:46,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:46,893 INFO L225 Difference]: With dead ends: 188 [2021-11-02 22:58:46,893 INFO L226 Difference]: Without dead ends: 188 [2021-11-02 22:58:46,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:58:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-02 22:58:46,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-02 22:58:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 176 states have internal predecessors, (187), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:58:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 200 transitions. [2021-11-02 22:58:46,903 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 200 transitions. Word has length 10 [2021-11-02 22:58:46,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:46,903 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 200 transitions. [2021-11-02 22:58:46,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:58:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 200 transitions. [2021-11-02 22:58:46,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-02 22:58:46,904 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:46,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:46,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:58:47,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:58:47,116 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting appendErr10REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:58:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1988993385, now seen corresponding path program 1 times [2021-11-02 22:58:47,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:58:47,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011283877] [2021-11-02 22:58:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:47,117 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:58:47,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:58:47,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:58:47,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-02 22:58:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:47,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-02 22:58:47,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:58:47,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-02 22:58:47,410 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 22:58:47,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-02 22:58:47,544 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-02 22:58:47,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 44 [2021-11-02 22:58:47,575 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-02 22:58:47,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-02 22:58:47,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-02 22:58:47,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 10 [2021-11-02 22:58:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:47,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:03,506 WARN L207 SmtUtils]: Spent 7.96 s on a formula simplification that was a NOOP. DAG size: 26 [2021-11-02 22:59:05,627 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_append_~node~0.base_19 (_ BitVec 32))) (or (and (forall ((|append_#t~mem27.offset| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.offset| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.offset|)) |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32))) (forall ((|append_#t~mem27.base| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.base| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.base|)) |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_append_~node~0.base_19)))))) is different from false [2021-11-02 22:59:07,706 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_append_~node~0.base_19 (_ BitVec 32))) (or (and (forall ((|append_#t~mem27.offset| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.offset| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.offset|)) |c_main_~#list~0.base|) |c_main_~#list~0.offset|) (_ bv0 32))) (forall ((|append_#t~mem27.base| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.base| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.base|)) |c_main_~#list~0.base|) |c_main_~#list~0.offset|) (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_append_~node~0.base_19)))))) is different from false [2021-11-02 22:59:07,755 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 63 treesize of output 61 [2021-11-02 22:59:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:07,793 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:07,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011283877] [2021-11-02 22:59:07,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011283877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:07,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:07,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2021-11-02 22:59:07,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822848842] [2021-11-02 22:59:07,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:59:07,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:59:07,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=40, Unknown=4, NotChecked=26, Total=90 [2021-11-02 22:59:07,800 INFO L87 Difference]: Start difference. First operand 188 states and 200 transitions. Second operand has 10 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:09,848 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_$Pointer$.offset| |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_append_#in~pointerToList.base|))) (_ bv1 1))) (= (select (select |c_#memory_$Pointer$.base| |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32)) (forall ((v_append_~node~0.base_19 (_ BitVec 32))) (or (and (forall ((|append_#t~mem27.offset| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.offset| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.offset|)) |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32))) (forall ((|append_#t~mem27.base| (_ BitVec 32)) (append_~node~0.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| v_append_~node~0.base_19 (store (select |c_#memory_$Pointer$.base| v_append_~node~0.base_19) (bvadd (_ bv4 32) append_~node~0.offset) |append_#t~mem27.base|)) |c_append_#in~pointerToList.base|) |c_append_#in~pointerToList.offset|) (_ bv0 32)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_append_~node~0.base_19))))))) is different from false [2021-11-02 22:59:11,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:11,130 INFO L93 Difference]: Finished difference Result 193 states and 206 transitions. [2021-11-02 22:59:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:59:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-02 22:59:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:11,134 INFO L225 Difference]: With dead ends: 193 [2021-11-02 22:59:11,134 INFO L226 Difference]: Without dead ends: 193 [2021-11-02 22:59:11,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=28, Invalid=51, Unknown=5, NotChecked=48, Total=132 [2021-11-02 22:59:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-02 22:59:11,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2021-11-02 22:59:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 100 states have (on average 1.91) internal successors, (191), 180 states have internal predecessors, (191), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2021-11-02 22:59:11,152 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 15 [2021-11-02 22:59:11,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:11,152 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2021-11-02 22:59:11,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2021-11-02 22:59:11,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-02 22:59:11,153 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:11,153 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:11,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:11,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:11,354 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr0REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash 156211894, now seen corresponding path program 1 times [2021-11-02 22:59:11,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:11,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913745427] [2021-11-02 22:59:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:11,355 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:11,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:11,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-02 22:59:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:11,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:59:11,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:11,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:11,641 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:11,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913745427] [2021-11-02 22:59:11,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913745427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:11,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:11,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-02 22:59:11,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751869759] [2021-11-02 22:59:11,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:59:11,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:59:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:11,643 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:11,699 INFO L93 Difference]: Finished difference Result 269 states and 285 transitions. [2021-11-02 22:59:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:59:11,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-02 22:59:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:11,702 INFO L225 Difference]: With dead ends: 269 [2021-11-02 22:59:11,702 INFO L226 Difference]: Without dead ends: 269 [2021-11-02 22:59:11,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-02 22:59:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 233. [2021-11-02 22:59:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 140 states have (on average 1.9428571428571428) internal successors, (272), 220 states have internal predecessors, (272), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 285 transitions. [2021-11-02 22:59:11,716 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 285 transitions. Word has length 17 [2021-11-02 22:59:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:11,716 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 285 transitions. [2021-11-02 22:59:11,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 285 transitions. [2021-11-02 22:59:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 22:59:11,717 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:11,717 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:11,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:11,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:11,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr4REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:11,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:11,929 INFO L85 PathProgramCache]: Analyzing trace with hash 547607657, now seen corresponding path program 1 times [2021-11-02 22:59:11,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:11,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937574729] [2021-11-02 22:59:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:11,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:11,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:11,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:11,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-02 22:59:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:12,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:59:12,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:12,214 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 22:59:12,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-02 22:59:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:12,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:12,295 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:12,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937574729] [2021-11-02 22:59:12,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937574729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:12,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:12,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 22:59:12,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643639069] [2021-11-02 22:59:12,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:12,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:12,297 INFO L87 Difference]: Start difference. First operand 233 states and 285 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:12,672 INFO L93 Difference]: Finished difference Result 236 states and 281 transitions. [2021-11-02 22:59:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:12,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-02 22:59:12,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:12,674 INFO L225 Difference]: With dead ends: 236 [2021-11-02 22:59:12,674 INFO L226 Difference]: Without dead ends: 236 [2021-11-02 22:59:12,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-02 22:59:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2021-11-02 22:59:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 146 states have (on average 1.7945205479452055) internal successors, (262), 214 states have internal predecessors, (262), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 275 transitions. [2021-11-02 22:59:12,685 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 275 transitions. Word has length 18 [2021-11-02 22:59:12,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:12,686 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 275 transitions. [2021-11-02 22:59:12,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:12,686 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 275 transitions. [2021-11-02 22:59:12,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 22:59:12,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:12,687 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:12,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:12,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:12,901 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr5REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:12,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:12,901 INFO L85 PathProgramCache]: Analyzing trace with hash 547607658, now seen corresponding path program 1 times [2021-11-02 22:59:12,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:12,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921936712] [2021-11-02 22:59:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:12,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:12,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:12,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:12,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-02 22:59:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:13,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:59:13,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:13,129 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-02 22:59:13,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2021-11-02 22:59:13,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2021-11-02 22:59:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:13,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:13,257 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:13,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921936712] [2021-11-02 22:59:13,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921936712] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:13,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:13,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-02 22:59:13,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748315767] [2021-11-02 22:59:13,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:59:13,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:13,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:59:13,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:13,259 INFO L87 Difference]: Start difference. First operand 227 states and 275 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:14,154 INFO L93 Difference]: Finished difference Result 252 states and 297 transitions. [2021-11-02 22:59:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:59:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-02 22:59:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:14,157 INFO L225 Difference]: With dead ends: 252 [2021-11-02 22:59:14,157 INFO L226 Difference]: Without dead ends: 252 [2021-11-02 22:59:14,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-02 22:59:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 218. [2021-11-02 22:59:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 146 states have (on average 1.6712328767123288) internal successors, (244), 205 states have internal predecessors, (244), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 257 transitions. [2021-11-02 22:59:14,166 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 257 transitions. Word has length 18 [2021-11-02 22:59:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:14,166 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 257 transitions. [2021-11-02 22:59:14,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 257 transitions. [2021-11-02 22:59:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 22:59:14,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:14,167 INFO L513 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] [2021-11-02 22:59:14,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:14,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:14,383 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr8REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:14,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash -931835500, now seen corresponding path program 1 times [2021-11-02 22:59:14,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:14,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872876067] [2021-11-02 22:59:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:14,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:14,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:14,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:14,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-02 22:59:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:14,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:59:14,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:14,628 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 22:59:14,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-02 22:59:14,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 20 [2021-11-02 22:59:14,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 23 [2021-11-02 22:59:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:14,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:14,860 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:14,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872876067] [2021-11-02 22:59:14,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872876067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:14,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:14,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-02 22:59:14,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270110579] [2021-11-02 22:59:14,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 22:59:14,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:14,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 22:59:14,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:59:14,862 INFO L87 Difference]: Start difference. First operand 218 states and 257 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:15,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:15,927 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2021-11-02 22:59:15,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:59:15,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-02 22:59:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:15,931 INFO L225 Difference]: With dead ends: 269 [2021-11-02 22:59:15,931 INFO L226 Difference]: Without dead ends: 269 [2021-11-02 22:59:15,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-02 22:59:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 224. [2021-11-02 22:59:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 152 states have (on average 1.6710526315789473) internal successors, (254), 211 states have internal predecessors, (254), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 267 transitions. [2021-11-02 22:59:15,940 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 267 transitions. Word has length 22 [2021-11-02 22:59:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:15,941 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 267 transitions. [2021-11-02 22:59:15,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 267 transitions. [2021-11-02 22:59:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 22:59:15,942 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:15,942 INFO L513 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] [2021-11-02 22:59:15,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:16,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:16,154 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr9REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:16,154 INFO L85 PathProgramCache]: Analyzing trace with hash -931835499, now seen corresponding path program 1 times [2021-11-02 22:59:16,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:16,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798338728] [2021-11-02 22:59:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:16,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:16,156 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-02 22:59:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:16,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:59:16,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:16,403 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-02 22:59:16,404 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 [2021-11-02 22:59:16,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 24 [2021-11-02 22:59:16,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-02 22:59:16,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 36 [2021-11-02 22:59:16,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 21 [2021-11-02 22:59:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:16,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:59:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:17,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:59:17,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798338728] [2021-11-02 22:59:17,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798338728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:17,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:17,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-02 22:59:17,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213419132] [2021-11-02 22:59:17,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:59:17,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:59:17,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:59:17,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:17,265 INFO L87 Difference]: Start difference. First operand 224 states and 267 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:19,948 INFO L93 Difference]: Finished difference Result 226 states and 265 transitions. [2021-11-02 22:59:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:59:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-02 22:59:19,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:19,952 INFO L225 Difference]: With dead ends: 226 [2021-11-02 22:59:19,952 INFO L226 Difference]: Without dead ends: 226 [2021-11-02 22:59:19,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:19,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-02 22:59:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2021-11-02 22:59:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 152 states have (on average 1.644736842105263) internal successors, (250), 211 states have internal predecessors, (250), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 22:59:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 263 transitions. [2021-11-02 22:59:19,960 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 263 transitions. Word has length 22 [2021-11-02 22:59:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:19,961 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 263 transitions. [2021-11-02 22:59:19,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 22:59:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 263 transitions. [2021-11-02 22:59:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-02 22:59:19,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:19,962 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:19,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:20,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:59:20,182 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr8REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 22:59:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:20,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1895914143, now seen corresponding path program 1 times [2021-11-02 22:59:20,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:59:20,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735747607] [2021-11-02 22:59:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:20,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:59:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:59:20,184 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:59:20,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-02 22:59:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:20,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 22:59:20,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:20,541 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 22:59:20,541 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 20 treesize of output 22 [2021-11-02 22:59:20,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 24 [2021-11-02 22:59:20,805 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-02 22:59:20,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 137 treesize of output 48 [2021-11-02 22:59:20,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 27 [2021-11-02 22:59:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:59:20,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:11:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:31,635 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:11:31,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735747607] [2021-11-02 23:11:31,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735747607] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 23:11:31,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:11:31,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-11-02 23:11:31,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764148890] [2021-11-02 23:11:31,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:11:31,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:11:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:11:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2021-11-02 23:11:31,636 INFO L87 Difference]: Start difference. First operand 224 states and 263 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:11:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:33,678 INFO L93 Difference]: Finished difference Result 231 states and 267 transitions. [2021-11-02 23:11:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 23:11:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-02 23:11:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:33,680 INFO L225 Difference]: With dead ends: 231 [2021-11-02 23:11:33,680 INFO L226 Difference]: Without dead ends: 231 [2021-11-02 23:11:33,681 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=38, Invalid=93, Unknown=1, NotChecked=0, Total=132 [2021-11-02 23:11:33,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-02 23:11:33,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 223. [2021-11-02 23:11:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 152 states have (on average 1.631578947368421) internal successors, (248), 210 states have internal predecessors, (248), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 23:11:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 261 transitions. [2021-11-02 23:11:33,692 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 261 transitions. Word has length 27 [2021-11-02 23:11:33,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:33,692 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 261 transitions. [2021-11-02 23:11:33,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:11:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 261 transitions. [2021-11-02 23:11:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-02 23:11:33,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:33,694 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:33,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-02 23:11:33,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:11:33,914 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr9REQUIRES_VIOLATION === [freeDataErr0REQUIRES_VIOLATION, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE (and 88 more)] === [2021-11-02 23:11:33,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:33,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1895914144, now seen corresponding path program 1 times [2021-11-02 23:11:33,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:11:33,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096546386] [2021-11-02 23:11:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:33,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:11:33,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:11:33,916 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:11:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a01e49-00c8-4584-b3dd-e0847916531e/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-02 23:11:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:34,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 23:11:34,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:34,339 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-02 23:11:34,340 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 [2021-11-02 23:11:34,357 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 12 treesize of output 10 [2021-11-02 23:11:34,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-02 23:11:34,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 15 [2021-11-02 23:11:34,779 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-02 23:11:34,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 122 [2021-11-02 23:11:34,884 INFO L354 Elim1Store]: treesize reduction 714, result has 1.2 percent of original size [2021-11-02 23:11:34,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 131 treesize of output 24 [2021-11-02 23:11:35,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 44 treesize of output 32 [2021-11-02 23:11:35,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-11-02 23:11:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:35,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:11:51,569 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (|create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6)) (.cse2 (bvadd |create_data_#t~mem11.offset| .cse0)) (.cse3 (bvadd |create_data_#t~mem11.offset| .cse0 (_ bv1 32))) (.cse4 (bvadd (_ bv2 32) |create_data_#t~mem11.offset| .cse0)) (.cse5 (bvadd (_ bv3 32) |create_data_#t~mem11.offset| .cse0))) (bvule (bvadd (_ bv8 32) .cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse1) .cse2 v_DerPreprocessor_5) .cse3 v_DerPreprocessor_6) .cse4 v_DerPreprocessor_7) .cse5 v_DerPreprocessor_8)) c_create_data_~data~0.base) .cse6)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 (store (store (store (store (select |c_#memory_$Pointer$.base| .cse1) .cse2 v_DerPreprocessor_9) .cse3 v_DerPreprocessor_10) .cse4 v_DerPreprocessor_11) .cse5 v_DerPreprocessor_12)) c_create_data_~data~0.base) .cse6)))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse7 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (let ((.cse8 (let ((.cse10 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse9 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse10))) (store |c_#memory_$Pointer$.offset| .cse9 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse9) (bvadd |create_data_#t~mem11.offset| .cse7) v_DerPreprocessor_5) (bvadd |create_data_#t~mem11.offset| .cse7 (_ bv1 32)) v_DerPreprocessor_6) (bvadd (_ bv2 32) |create_data_#t~mem11.offset| .cse7) v_DerPreprocessor_7) (bvadd (_ bv3 32) |create_data_#t~mem11.offset| .cse7) v_DerPreprocessor_8))) c_create_data_~data~0.base) .cse10)))) (bvule (bvadd (_ bv4 32) .cse7 .cse8) (bvadd (_ bv8 32) .cse7 .cse8)))))) is different from false