./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:54:37,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:54:37,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:54:37,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:54:37,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:54:37,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:54:37,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:54:37,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:54:37,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:54:37,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:54:37,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:54:37,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:54:37,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:54:37,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:54:37,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:54:37,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:54:37,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:54:37,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:54:37,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:54:37,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:54:37,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:54:37,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:54:37,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:54:37,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:54:37,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:54:37,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:54:37,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:54:37,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:54:37,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:54:37,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:54:37,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:54:37,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:54:37,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:54:37,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:54:37,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:54:37,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:54:37,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:54:37,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:54:37,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:54:37,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:54:37,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:54:37,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:54:37,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:54:37,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:54:37,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:54:37,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:54:37,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:54:37,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:54:37,551 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:54:37,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:54:37,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:54:37,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:54:37,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:54:37,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:54:37,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:54:37,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:54:37,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:54:37,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:54:37,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:54:37,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:54:37,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:37,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:54:37,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:54:37,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:54:37,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:54:37,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:54:37,556 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_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-10-28 23:54:37,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:54:37,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:54:37,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:54:37,862 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:54:37,871 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:54:37,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-28 23:54:37,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1dcf95a17/fb3296def41645e1aa5478ed21404ffd/FLAG3d95d11eb [2021-10-28 23:54:38,459 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:54:38,460 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-28 23:54:38,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1dcf95a17/fb3296def41645e1aa5478ed21404ffd/FLAG3d95d11eb [2021-10-28 23:54:38,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1dcf95a17/fb3296def41645e1aa5478ed21404ffd [2021-10-28 23:54:38,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:54:38,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:54:38,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:38,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:54:38,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:54:38,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:38" (1/1) ... [2021-10-28 23:54:38,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181a1deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:38, skipping insertion in model container [2021-10-28 23:54:38,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:38" (1/1) ... [2021-10-28 23:54:38,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:54:38,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:54:39,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:39,240 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:54:39,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59d035ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:39, skipping insertion in model container [2021-10-28 23:54:39,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:39,241 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:54:39,242 INFO L168 Benchmark]: Toolchain (without parser) took 425.62 ms. Allocated memory is still 142.6 MB. Free memory was 104.4 MB in the beginning and 113.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:39,243 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 142.6 MB. Free memory was 116.4 MB in the beginning and 116.4 MB in the end (delta: 29.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:54:39,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.94 ms. Allocated memory is still 142.6 MB. Free memory was 104.4 MB in the beginning and 113.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:39,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 142.6 MB. Free memory was 116.4 MB in the beginning and 116.4 MB in the end (delta: 29.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 418.94 ms. Allocated memory is still 142.6 MB. Free memory was 104.4 MB in the beginning and 113.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:54:41,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:54:41,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:54:41,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:54:41,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:54:41,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:54:41,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:54:41,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:54:41,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:54:41,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:54:41,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:54:41,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:54:41,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:54:41,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:54:41,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:54:41,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:54:41,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:54:41,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:54:41,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:54:41,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:54:41,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:54:41,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:54:41,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:54:41,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:54:41,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:54:41,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:54:41,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:54:41,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:54:41,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:54:41,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:54:41,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:54:41,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:54:41,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:54:41,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:54:41,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:54:41,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:54:41,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:54:41,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:54:41,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:54:41,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:54:41,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:54:41,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:54:41,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:54:41,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:54:41,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:54:41,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:54:41,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:54:41,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:54:41,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:54:41,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:54:41,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:54:41,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:54:41,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:54:41,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:54:41,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:54:41,645 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:54:41,645 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:54:41,645 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:54:41,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:54:41,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:54:41,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:54:41,646 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:54:41,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:54:41,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:54:41,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:54:41,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:54:41,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:54:41,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:41,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:54:41,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:54:41,648 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:54:41,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:54:41,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:54:41,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:54:41,649 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_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-10-28 23:54:42,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:54:42,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:54:42,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:54:42,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:54:42,040 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:54:42,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-28 23:54:42,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1395d9c0d/55730d467cb0474fa8534d67b0595f28/FLAG7996f715b [2021-10-28 23:54:42,794 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:54:42,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-28 23:54:42,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1395d9c0d/55730d467cb0474fa8534d67b0595f28/FLAG7996f715b [2021-10-28 23:54:43,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/data/1395d9c0d/55730d467cb0474fa8534d67b0595f28 [2021-10-28 23:54:43,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:54:43,044 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:54:43,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:43,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:54:43,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:54:43,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1798c9a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43, skipping insertion in model container [2021-10-28 23:54:43,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:54:43,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:54:43,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:43,459 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:54:43,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:54:43,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:43,549 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:54:43,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:43,625 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:54:43,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43 WrapperNode [2021-10-28 23:54:43,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:43,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:54:43,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:54:43,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:54:43,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:54:43,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:54:43,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:54:43,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:54:43,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (1/1) ... [2021-10-28 23:54:43,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:43,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:54:43,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:54:43,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:54:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:54:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:54:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:54:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:54:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:54:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:54:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:54:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:54:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2021-10-28 23:54:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:54:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:54:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:54:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:54:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:54:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:54:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:54:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:54:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:54:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:54:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:54:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:54:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:54:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:54:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:54:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:54:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:54:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:54:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:54:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:54:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:54:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:54:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:54:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:54:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:54:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:54:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:54:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:54:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:54:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:54:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:54:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:54:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:54:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:54:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:54:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:54:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:54:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:54:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2021-10-28 23:54:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:54:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:54:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:54:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:54:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:54:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:54:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:54:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:54:44,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:54:44,812 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:54:44,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:44 BoogieIcfgContainer [2021-10-28 23:54:44,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:54:44,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:54:44,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:54:44,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:54:44,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:54:43" (1/3) ... [2021-10-28 23:54:44,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc77fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:44, skipping insertion in model container [2021-10-28 23:54:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:43" (2/3) ... [2021-10-28 23:54:44,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc77fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:44, skipping insertion in model container [2021-10-28 23:54:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:44" (3/3) ... [2021-10-28 23:54:44,823 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-10-28 23:54:44,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:54:44,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-10-28 23:54:44,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:54:44,880 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:54:44,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-28 23:54:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:54:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:54:44,905 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:44,905 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:44,906 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-10-28 23:54:44,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:44,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2021-10-28 23:54:44,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:44,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203573474] [2021-10-28 23:54:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:44,935 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:44,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:44,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:54:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:45,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:54:45,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:45,351 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-10-28 23:54:45,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 50 [2021-10-28 23:54:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:45,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:45,780 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:45,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203573474] [2021-10-28 23:54:45,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203573474] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:45,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:45,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 23:54:45,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334268586] [2021-10-28 23:54:45,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:54:45,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:54:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:45,808 INFO L87 Difference]: Start difference. First operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:46,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:46,104 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-10-28 23:54:46,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:54:46,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-10-28 23:54:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:46,115 INFO L225 Difference]: With dead ends: 72 [2021-10-28 23:54:46,115 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 23:54:46,117 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 23:54:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 23:54:46,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.868421052631579) internal successors, (71), 63 states have internal predecessors, (71), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:54:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2021-10-28 23:54:46,157 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 11 [2021-10-28 23:54:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:46,158 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2021-10-28 23:54:46,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2021-10-28 23:54:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:54:46,159 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:46,159 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:46,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:46,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:46,375 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-10-28 23:54:46,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:46,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2021-10-28 23:54:46,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:46,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141560562] [2021-10-28 23:54:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:46,378 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:46,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:46,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:46,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:54:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:46,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:54:46,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:46,695 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-10-28 23:54:46,695 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 3 case distinctions, treesize of input 38 treesize of output 43 [2021-10-28 23:54:46,707 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 23:54:46,709 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 46 treesize of output 42 [2021-10-28 23:54:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:46,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:47,179 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 23:54:47,180 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 74 treesize of output 70 [2021-10-28 23:54:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:47,302 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:47,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141560562] [2021-10-28 23:54:47,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141560562] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:47,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:47,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 23:54:47,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719070947] [2021-10-28 23:54:47,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:54:47,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:54:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:54:47,310 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:48,566 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2021-10-28 23:54:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:54:48,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 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 11 [2021-10-28 23:54:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:48,579 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:54:48,579 INFO L226 Difference]: Without dead ends: 133 [2021-10-28 23:54:48,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:54:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-28 23:54:48,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 75. [2021-10-28 23:54:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 69 states have internal predecessors, (79), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:54:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2021-10-28 23:54:48,594 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 11 [2021-10-28 23:54:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:48,594 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2021-10-28 23:54:48,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:54:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2021-10-28 23:54:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:54:48,595 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:48,595 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:48,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:54:48,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:48,807 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-10-28 23:54:48,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2021-10-28 23:54:48,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:48,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800022676] [2021-10-28 23:54:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:48,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:48,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:48,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:48,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:54:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:54:48,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:54:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:54:48,993 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:54:48,994 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:54:48,995 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:54:48,997 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:54:48,997 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:54:48,997 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:54:48,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:54:48,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:54:48,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:54:48,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr0REQUIRES_VIOLATION [2021-10-28 23:54:48,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr1REQUIRES_VIOLATION [2021-10-28 23:54:48,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr2REQUIRES_VIOLATION [2021-10-28 23:54:48,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr3REQUIRES_VIOLATION [2021-10-28 23:54:48,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr4REQUIRES_VIOLATION [2021-10-28 23:54:49,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr5REQUIRES_VIOLATION [2021-10-28 23:54:49,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr6REQUIRES_VIOLATION [2021-10-28 23:54:49,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr7REQUIRES_VIOLATION [2021-10-28 23:54:49,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr8REQUIRES_VIOLATION [2021-10-28 23:54:49,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr9REQUIRES_VIOLATION [2021-10-28 23:54:49,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr10REQUIRES_VIOLATION [2021-10-28 23:54:49,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr11REQUIRES_VIOLATION [2021-10-28 23:54:49,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr12REQUIRES_VIOLATION [2021-10-28 23:54:49,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr13REQUIRES_VIOLATION [2021-10-28 23:54:49,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr14REQUIRES_VIOLATION [2021-10-28 23:54:49,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr15REQUIRES_VIOLATION [2021-10-28 23:54:49,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr16REQUIRES_VIOLATION [2021-10-28 23:54:49,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr17REQUIRES_VIOLATION [2021-10-28 23:54:49,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr18REQUIRES_VIOLATION [2021-10-28 23:54:49,003 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr19REQUIRES_VIOLATION [2021-10-28 23:54:49,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:49,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:49,213 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:54:49,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:54:49,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:54:49 BoogieIcfgContainer [2021-10-28 23:54:49,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:54:49,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:54:49,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:54:49,234 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:54:49,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:44" (3/4) ... [2021-10-28 23:54:49,236 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:54:49,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:54:49,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:54:49,274 INFO L168 Benchmark]: Toolchain (without parser) took 6229.27 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 54.1 MB in the beginning and 79.6 MB in the end (delta: -25.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,275 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:54:49,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.48 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 46.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,276 INFO L168 Benchmark]: Boogie Preprocessor took 103.39 ms. Allocated memory is still 73.4 MB. Free memory was 46.8 MB in the beginning and 43.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,276 INFO L168 Benchmark]: RCFGBuilder took 1083.63 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 39.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,277 INFO L168 Benchmark]: TraceAbstraction took 4416.46 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 39.1 MB in the beginning and 81.5 MB in the end (delta: -42.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,277 INFO L168 Benchmark]: Witness Printer took 39.67 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 79.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:49,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.48 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 46.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.39 ms. Allocated memory is still 73.4 MB. Free memory was 46.8 MB in the beginning and 43.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1083.63 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 39.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4416.46 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 39.1 MB in the beginning and 81.5 MB in the end (delta: -42.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * Witness Printer took 39.67 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 79.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 179 SDslu, 299 SDs, 0 SdLazy, 125 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 4 QuantifiedInterpolants, 266 SizeOfPredicates, 14 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:54:49,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b540fef-0364-4737-a4e8-2ddb01d75435/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...