./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC --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 10bdb405bd6bca2bddb8b686c44dad291e109402 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:33:40,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:40,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:40,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:40,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:40,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:40,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:40,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:40,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:40,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:40,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:40,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:40,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:40,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:40,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:40,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:40,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:40,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:40,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:40,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:40,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:40,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:40,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:40,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:40,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:40,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:40,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:40,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:40,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:40,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:40,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:40,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:40,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:40,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:40,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:40,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:40,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:40,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:40,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:40,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:40,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:40,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-11 00:33:40,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:40,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:40,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:40,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:40,547 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:40,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:40,548 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:40,548 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:33:40,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:40,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:40,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:40,550 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:33:40,551 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:33:40,551 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 00:33:40,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:40,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:33:40,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:40,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:40,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:40,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:40,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:40,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:40,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:40,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:40,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:40,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:40,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:40,555 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_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2021-10-11 00:33:40,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:40,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:40,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:40,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:40,835 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:40,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-10-11 00:33:40,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/data/e34f880d8/e973b1655210463f8167c0505bf7d77b/FLAG276602d57 [2021-10-11 00:33:41,403 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:41,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-10-11 00:33:41,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/data/e34f880d8/e973b1655210463f8167c0505bf7d77b/FLAG276602d57 [2021-10-11 00:33:41,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/data/e34f880d8/e973b1655210463f8167c0505bf7d77b [2021-10-11 00:33:41,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:41,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:33:41,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:41,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:41,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:41,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:41" (1/1) ... [2021-10-11 00:33:41,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1044459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:41, skipping insertion in model container [2021-10-11 00:33:41,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:41" (1/1) ... [2021-10-11 00:33:41,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:41,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:42,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:42,140 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:42,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:42,232 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:42,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42 WrapperNode [2021-10-11 00:33:42,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:42,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:42,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:42,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:42,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... [2021-10-11 00:33:42,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:42,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:42,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:42,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:42,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:42,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-11 00:33:42,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-11 00:33:42,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2021-10-11 00:33:42,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:33:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-11 00:33:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-11 00:33:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-11 00:33:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-11 00:33:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-11 00:33:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-11 00:33:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-11 00:33:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-11 00:33:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-11 00:33:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-11 00:33:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-11 00:33:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-11 00:33:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-11 00:33:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-11 00:33:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-11 00:33:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-11 00:33:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-11 00:33:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-11 00:33:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-11 00:33:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-11 00:33:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-11 00:33:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-11 00:33:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-11 00:33:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-11 00:33:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-11 00:33:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-11 00:33:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-11 00:33:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:33:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-11 00:33:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-11 00:33:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-11 00:33:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-11 00:33:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-11 00:33:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-11 00:33:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-11 00:33:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-11 00:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-11 00:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-11 00:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-11 00:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-11 00:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-11 00:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-11 00:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-11 00:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-11 00:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:33:42,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:42,987 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-11 00:33:42,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42 BoogieIcfgContainer [2021-10-11 00:33:42,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:42,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:42,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:42,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:42,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:41" (1/3) ... [2021-10-11 00:33:42,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418d6007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:42, skipping insertion in model container [2021-10-11 00:33:42,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:42" (2/3) ... [2021-10-11 00:33:42,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418d6007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:42, skipping insertion in model container [2021-10-11 00:33:42,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42" (3/3) ... [2021-10-11 00:33:42,998 INFO L111 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2021-10-11 00:33:43,014 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:43,016 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:33:43,027 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:33:43,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:43,048 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:33:43,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:43,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:43,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:43,049 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:43,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:43,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2021-10-11 00:33:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:33:43,071 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:43,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:43,072 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:43,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2021-10-11 00:33:43,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:43,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042508607] [2021-10-11 00:33:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:43,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:43,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042508607] [2021-10-11 00:33:43,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:43,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:33:43,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028738779] [2021-10-11 00:33:43,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:33:43,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:43,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:33:43,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:33:43,490 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2021-10-11 00:33:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:43,852 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-10-11 00:33:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:33:43,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2021-10-11 00:33:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:43,866 INFO L225 Difference]: With dead ends: 32 [2021-10-11 00:33:43,866 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 00:33:43,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:33:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 00:33:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-10-11 00:33:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 00:33:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-10-11 00:33:43,909 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2021-10-11 00:33:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:43,909 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-11 00:33:43,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:33:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-10-11 00:33:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:33:43,911 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:43,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:43,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:43,913 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:43,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:43,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2021-10-11 00:33:43,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:43,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717497377] [2021-10-11 00:33:43,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:44,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717497377] [2021-10-11 00:33:44,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:44,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:33:44,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822464139] [2021-10-11 00:33:44,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:33:44,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:44,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:33:44,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:33:44,092 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2021-10-11 00:33:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:44,283 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-11 00:33:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:33:44,283 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2021-10-11 00:33:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:44,289 INFO L225 Difference]: With dead ends: 29 [2021-10-11 00:33:44,290 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 00:33:44,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:33:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 00:33:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-10-11 00:33:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-11 00:33:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2021-10-11 00:33:44,299 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2021-10-11 00:33:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:44,299 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-10-11 00:33:44,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:33:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-10-11 00:33:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:33:44,301 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:44,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:44,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:33:44,301 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2021-10-11 00:33:44,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:44,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553808147] [2021-10-11 00:33:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-11 00:33:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:44,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553808147] [2021-10-11 00:33:44,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:44,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:33:44,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884418143] [2021-10-11 00:33:44,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:33:44,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:44,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:33:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:33:44,474 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2021-10-11 00:33:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:44,730 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-10-11 00:33:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 00:33:44,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2021-10-11 00:33:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:44,736 INFO L225 Difference]: With dead ends: 39 [2021-10-11 00:33:44,737 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 00:33:44,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:33:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 00:33:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-10-11 00:33:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 00:33:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-10-11 00:33:44,752 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2021-10-11 00:33:44,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:44,753 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-10-11 00:33:44,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:33:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-10-11 00:33:44,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:33:44,754 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:44,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:44,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:33:44,754 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:44,755 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2021-10-11 00:33:44,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:44,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331981584] [2021-10-11 00:33:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-11 00:33:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:44,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331981584] [2021-10-11 00:33:44,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:44,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:33:44,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754854861] [2021-10-11 00:33:44,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:33:44,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:44,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:33:44,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:33:44,880 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2021-10-11 00:33:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:45,115 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-10-11 00:33:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:33:45,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2021-10-11 00:33:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:45,118 INFO L225 Difference]: With dead ends: 33 [2021-10-11 00:33:45,118 INFO L226 Difference]: Without dead ends: 30 [2021-10-11 00:33:45,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:33:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-11 00:33:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-10-11 00:33:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-11 00:33:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-10-11 00:33:45,132 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2021-10-11 00:33:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:45,132 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-10-11 00:33:45,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:33:45,133 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-10-11 00:33:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:33:45,133 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:45,134 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:45,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:33:45,134 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:45,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2021-10-11 00:33:45,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:45,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210876408] [2021-10-11 00:33:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:45,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:45,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210876408] [2021-10-11 00:33:45,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:45,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:33:45,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593616316] [2021-10-11 00:33:45,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:33:45,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:45,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:33:45,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:33:45,335 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2021-10-11 00:33:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:45,535 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2021-10-11 00:33:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:33:45,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-10-11 00:33:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:45,539 INFO L225 Difference]: With dead ends: 41 [2021-10-11 00:33:45,540 INFO L226 Difference]: Without dead ends: 41 [2021-10-11 00:33:45,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:33:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-11 00:33:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-10-11 00:33:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 00:33:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-10-11 00:33:45,552 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2021-10-11 00:33:45,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:45,552 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-11 00:33:45,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:33:45,553 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-10-11 00:33:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:33:45,554 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:45,554 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:45,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:33:45,555 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:45,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2021-10-11 00:33:45,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:45,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447053486] [2021-10-11 00:33:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:45,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:45,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447053486] [2021-10-11 00:33:45,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248113913] [2021-10-11 00:33:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:46,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-11 00:33:46,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:46,272 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-11 00:33:46,273 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:33:46,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:33:46,284 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:33:46,284 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2021-10-11 00:33:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:46,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:33:46,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-10-11 00:33:46,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982065278] [2021-10-11 00:33:46,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-10-11 00:33:46,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:46,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-11 00:33:46,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2021-10-11 00:33:46,746 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2021-10-11 00:33:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:47,688 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-10-11 00:33:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:33:47,689 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2021-10-11 00:33:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:47,690 INFO L225 Difference]: With dead ends: 44 [2021-10-11 00:33:47,690 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 00:33:47,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2021-10-11 00:33:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 00:33:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-10-11 00:33:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-10-11 00:33:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-10-11 00:33:47,695 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2021-10-11 00:33:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:47,696 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-10-11 00:33:47,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-10-11 00:33:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-10-11 00:33:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:33:47,696 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:47,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:47,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:33:47,909 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2021-10-11 00:33:47,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:47,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598376260] [2021-10-11 00:33:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:47,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-11 00:33:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:47,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598376260] [2021-10-11 00:33:47,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:33:47,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:33:47,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701218612] [2021-10-11 00:33:47,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:33:47,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:47,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:33:47,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:33:47,981 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2021-10-11 00:33:48,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:48,067 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-10-11 00:33:48,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:33:48,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-10-11 00:33:48,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:48,068 INFO L225 Difference]: With dead ends: 42 [2021-10-11 00:33:48,068 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 00:33:48,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:33:48,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 00:33:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-11 00:33:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-10-11 00:33:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-11 00:33:48,079 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2021-10-11 00:33:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:48,080 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-11 00:33:48,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:33:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-11 00:33:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:33:48,081 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:48,081 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:48,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:33:48,081 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:48,082 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2021-10-11 00:33:48,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:48,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819741476] [2021-10-11 00:33:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:48,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:48,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819741476] [2021-10-11 00:33:48,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949931760] [2021-10-11 00:33:48,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:48,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:33:48,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:33:48,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-11 00:33:48,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:48,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-11 00:33:48,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:33:48,809 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:33:48,810 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:33:48,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-10-11 00:33:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:49,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:33:49,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-11 00:33:49,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453555040] [2021-10-11 00:33:49,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-10-11 00:33:49,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:49,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-11 00:33:49,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-10-11 00:33:49,416 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 28 states. [2021-10-11 00:33:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:50,879 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2021-10-11 00:33:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-11 00:33:50,880 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 24 [2021-10-11 00:33:50,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:50,885 INFO L225 Difference]: With dead ends: 36 [2021-10-11 00:33:50,885 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 00:33:50,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=225, Invalid=1755, Unknown=0, NotChecked=0, Total=1980 [2021-10-11 00:33:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 00:33:50,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-11 00:33:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-10-11 00:33:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-10-11 00:33:50,900 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2021-10-11 00:33:50,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:50,900 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-10-11 00:33:50,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-10-11 00:33:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-10-11 00:33:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:33:50,904 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:50,904 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:33:51,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:51,133 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2021-10-11 00:33:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:51,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2021-10-11 00:33:51,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:51,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054139744] [2021-10-11 00:33:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:51,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:33:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:33:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:51,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054139744] [2021-10-11 00:33:51,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941713726] [2021-10-11 00:33:51,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:51,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-11 00:33:51,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:33:51,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-11 00:33:51,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:33:51,898 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-11 00:33:51,899 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:33:51,903 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:33:51,903 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:33:51,903 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-10-11 00:33:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:33:52,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:33:52,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2021-10-11 00:33:52,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490810253] [2021-10-11 00:33:52,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-10-11 00:33:52,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:33:52,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-11 00:33:52,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2021-10-11 00:33:52,514 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2021-10-11 00:33:53,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:33:53,767 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-11 00:33:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-11 00:33:53,768 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2021-10-11 00:33:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:33:53,768 INFO L225 Difference]: With dead ends: 40 [2021-10-11 00:33:53,769 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:33:53,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2021-10-11 00:33:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:33:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:33:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:33:53,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:33:53,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-10-11 00:33:53,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:33:53,770 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:33:53,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-10-11 00:33:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:33:53,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:33:53,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:33:53,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:53 BoogieIcfgContainer [2021-10-11 00:33:53,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:53,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:53,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:53,975 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:53,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:42" (3/4) ... [2021-10-11 00:33:53,978 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:33:53,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-11 00:33:53,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2021-10-11 00:33:53,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-11 00:33:53,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 00:33:53,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 00:33:53,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:53,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:33:54,028 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9214b410-14bb-45a9-8d02-7b487145fba1/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:33:54,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:54,033 INFO L168 Benchmark]: Toolchain (without parser) took 12279.01 ms. Allocated memory was 96.5 MB in the beginning and 213.9 MB in the end (delta: 117.4 MB). Free memory was 65.6 MB in the beginning and 154.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,033 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:54,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.77 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 62.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,034 INFO L168 Benchmark]: Boogie Preprocessor took 49.01 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,035 INFO L168 Benchmark]: RCFGBuilder took 705.71 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.5 MB in the beginning and 75.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,035 INFO L168 Benchmark]: TraceAbstraction took 10983.67 ms. Allocated memory was 117.4 MB in the beginning and 213.9 MB in the end (delta: 96.5 MB). Free memory was 75.3 MB in the beginning and 157.0 MB in the end (delta: -81.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,036 INFO L168 Benchmark]: Witness Printer took 57.03 ms. Allocated memory is still 213.9 MB. Free memory was 157.0 MB in the beginning and 154.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:54,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.77 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 62.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.01 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 705.71 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.5 MB in the beginning and 75.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10983.67 ms. Allocated memory was 117.4 MB in the beginning and 213.9 MB in the end (delta: 96.5 MB). Free memory was 75.3 MB in the beginning and 157.0 MB in the end (delta: -81.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 57.03 ms. Allocated memory is still 213.9 MB. Free memory was 157.0 MB in the beginning and 154.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.9s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 435 SDslu, 369 SDs, 0 SdLazy, 1656 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=6, 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, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 55806 SizeOfPredicates, 35 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/100 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 correct! Received shutdown request...