./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer --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 0.1.25-f470102 [2019-12-07 11:04:43,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:04:43,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:04:43,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:04:43,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:04:43,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:04:43,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:04:43,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:04:43,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:04:43,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:04:43,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:04:43,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:04:43,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:04:43,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:04:43,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:04:43,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:04:43,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:04:43,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:04:43,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:04:43,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:04:43,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:04:43,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:04:43,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:04:43,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:04:43,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:04:43,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:04:43,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:04:43,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:04:43,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:04:43,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:04:43,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:04:43,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:04:43,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:04:43,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:04:43,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:04:43,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:04:43,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:04:43,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:04:43,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:04:43,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:04:43,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:04:43,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 11:04:43,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:04:43,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:04:43,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:04:43,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:04:43,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:04:43,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:04:43,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:04:43,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:04:43,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:04:43,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer 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 [2019-12-07 11:04:43,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:04:43,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:04:43,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:04:43,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:04:43,598 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:04:43,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-12-07 11:04:43,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/data/15413286d/e509c87eb12e4cafb942498caa3944d6/FLAGa80a41d2f [2019-12-07 11:04:44,028 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:04:44,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-12-07 11:04:44,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/data/15413286d/e509c87eb12e4cafb942498caa3944d6/FLAGa80a41d2f [2019-12-07 11:04:44,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/data/15413286d/e509c87eb12e4cafb942498caa3944d6 [2019-12-07 11:04:44,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:04:44,048 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:04:44,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:44,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:04:44,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:04:44,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7003991e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44, skipping insertion in model container [2019-12-07 11:04:44,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:04:44,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:04:44,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:44,297 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:04:44,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:04:44,352 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:04:44,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44 WrapperNode [2019-12-07 11:04:44,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:04:44,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:04:44,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:04:44,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:04:44,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... [2019-12-07 11:04:44,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:04:44,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:04:44,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:04:44,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:04:44,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/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 [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 11:04:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 11:04:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-12-07 11:04:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 11:04:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 11:04:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 11:04:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 11:04:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 11:04:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 11:04:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 11:04:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 11:04:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:04:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:04:44,651 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:04:44,651 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-12-07 11:04:44,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:44 BoogieIcfgContainer [2019-12-07 11:04:44,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:04:44,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:04:44,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:04:44,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:04:44,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:04:44" (1/3) ... [2019-12-07 11:04:44,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69acaf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:04:44, skipping insertion in model container [2019-12-07 11:04:44,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:04:44" (2/3) ... [2019-12-07 11:04:44,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69acaf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:04:44, skipping insertion in model container [2019-12-07 11:04:44,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:44" (3/3) ... [2019-12-07 11:04:44,656 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-12-07 11:04:44,662 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:04:44,667 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:04:44,674 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:04:44,685 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:04:44,686 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 11:04:44,686 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:04:44,686 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:04:44,686 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:04:44,686 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:04:44,686 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:04:44,686 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:04:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-12-07 11:04:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:04:44,701 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:44,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:44,702 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:44,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2019-12-07 11:04:44,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:44,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199792299] [2019-12-07 11:04:44,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:44,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199792299] [2019-12-07 11:04:44,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:44,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 11:04:44,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637585646] [2019-12-07 11:04:44,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 11:04:44,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:44,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 11:04:44,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:04:44,921 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2019-12-07 11:04:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:45,111 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-12-07 11:04:45,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 11:04:45,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-12-07 11:04:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:45,118 INFO L225 Difference]: With dead ends: 32 [2019-12-07 11:04:45,118 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 11:04:45,119 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-12-07 11:04:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 11:04:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-12-07 11:04:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 11:04:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-12-07 11:04:45,143 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2019-12-07 11:04:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:45,143 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-12-07 11:04:45,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 11:04:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-12-07 11:04:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:04:45,144 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:45,144 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:45,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:45,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2019-12-07 11:04:45,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:45,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229471574] [2019-12-07 11:04:45,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:45,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229471574] [2019-12-07 11:04:45,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:45,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 11:04:45,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832737733] [2019-12-07 11:04:45,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:04:45,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:45,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:04:45,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:04:45,207 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2019-12-07 11:04:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:45,324 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-12-07 11:04:45,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:04:45,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-12-07 11:04:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:45,327 INFO L225 Difference]: With dead ends: 29 [2019-12-07 11:04:45,327 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 11:04:45,328 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-07 11:04:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 11:04:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-12-07 11:04:45,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 11:04:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-12-07 11:04:45,331 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-12-07 11:04:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:45,331 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-12-07 11:04:45,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:04:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-12-07 11:04:45,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 11:04:45,332 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:45,332 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:45,332 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:45,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2019-12-07 11:04:45,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:45,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859226917] [2019-12-07 11:04:45,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:45,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859226917] [2019-12-07 11:04:45,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:45,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 11:04:45,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160051393] [2019-12-07 11:04:45,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:04:45,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:45,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:04:45,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:04:45,399 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2019-12-07 11:04:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:45,531 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-12-07 11:04:45,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 11:04:45,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-12-07 11:04:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:45,532 INFO L225 Difference]: With dead ends: 39 [2019-12-07 11:04:45,532 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 11:04:45,533 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 11:04:45,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 11:04:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2019-12-07 11:04:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 11:04:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-12-07 11:04:45,540 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-12-07 11:04:45,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:45,540 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-12-07 11:04:45,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:04:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-12-07 11:04:45,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 11:04:45,541 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:45,541 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:45,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:45,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:45,541 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2019-12-07 11:04:45,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:45,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914813971] [2019-12-07 11:04:45,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:45,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914813971] [2019-12-07 11:04:45,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:45,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 11:04:45,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962700358] [2019-12-07 11:04:45,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:04:45,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:45,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:04:45,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:04:45,609 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2019-12-07 11:04:45,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:45,732 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-12-07 11:04:45,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 11:04:45,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 11:04:45,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:45,734 INFO L225 Difference]: With dead ends: 33 [2019-12-07 11:04:45,734 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 11:04:45,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2019-12-07 11:04:45,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 11:04:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-12-07 11:04:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 11:04:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-12-07 11:04:45,738 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2019-12-07 11:04:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:45,738 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-12-07 11:04:45,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:04:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-12-07 11:04:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:04:45,739 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:45,739 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:45,739 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:45,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2019-12-07 11:04:45,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:45,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492938734] [2019-12-07 11:04:45,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:45,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492938734] [2019-12-07 11:04:45,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:45,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 11:04:45,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877743764] [2019-12-07 11:04:45,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:04:45,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:45,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:04:45,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:04:45,823 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2019-12-07 11:04:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:45,923 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-12-07 11:04:45,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:04:45,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-07 11:04:45,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:45,924 INFO L225 Difference]: With dead ends: 41 [2019-12-07 11:04:45,924 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 11:04:45,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-12-07 11:04:45,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 11:04:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-12-07 11:04:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 11:04:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-12-07 11:04:45,928 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2019-12-07 11:04:45,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:45,928 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-12-07 11:04:45,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:04:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-12-07 11:04:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:04:45,929 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:45,929 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:45,929 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:45,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2019-12-07 11:04:45,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:45,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199145203] [2019-12-07 11:04:45,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:46,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199145203] [2019-12-07 11:04:46,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009722917] [2019-12-07 11:04:46,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/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 [2019-12-07 11:04:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:46,170 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 41 conjunts are in the unsatisfiable core [2019-12-07 11:04:46,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:46,215 INFO L377 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 [2019-12-07 11:04:46,215 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:04:46,219 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:04:46,220 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:04:46,220 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 11:04:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:46,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:04:46,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2019-12-07 11:04:46,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515606094] [2019-12-07 11:04:46,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-12-07 11:04:46,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:46,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-12-07 11:04:46,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-12-07 11:04:46,389 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2019-12-07 11:04:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:46,845 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-12-07 11:04:46,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 11:04:46,845 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2019-12-07 11:04:46,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:46,846 INFO L225 Difference]: With dead ends: 44 [2019-12-07 11:04:46,846 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 11:04:46,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-12-07 11:04:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 11:04:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-12-07 11:04:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 11:04:46,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-12-07 11:04:46,852 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2019-12-07 11:04:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:46,852 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-12-07 11:04:46,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-12-07 11:04:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-12-07 11:04:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:04:46,853 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:46,853 INFO L410 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] [2019-12-07 11:04:47,054 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:04:47,054 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:47,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:47,055 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2019-12-07 11:04:47,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:47,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53818914] [2019-12-07 11:04:47,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:47,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53818914] [2019-12-07 11:04:47,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:04:47,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 11:04:47,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89958426] [2019-12-07 11:04:47,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:04:47,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:47,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:04:47,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:04:47,150 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2019-12-07 11:04:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:47,200 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-12-07 11:04:47,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:04:47,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-12-07 11:04:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:47,201 INFO L225 Difference]: With dead ends: 42 [2019-12-07 11:04:47,201 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 11:04:47,202 INFO L630 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 [2019-12-07 11:04:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 11:04:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 11:04:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 11:04:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-12-07 11:04:47,204 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2019-12-07 11:04:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:47,204 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-12-07 11:04:47,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:04:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-12-07 11:04:47,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:04:47,204 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:47,204 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:47,205 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:47,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:47,205 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2019-12-07 11:04:47,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:47,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214000144] [2019-12-07 11:04:47,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:47,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214000144] [2019-12-07 11:04:47,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930776673] [2019-12-07 11:04:47,490 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/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 [2019-12-07 11:04:47,545 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 11:04:47,545 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 11:04:47,547 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2019-12-07 11:04:47,548 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:47,552 INFO L377 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 [2019-12-07 11:04:47,552 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:04:47,555 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:04:47,555 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:04:47,555 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 11:04:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:47,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:04:47,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-12-07 11:04:47,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274477450] [2019-12-07 11:04:47,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-12-07 11:04:47,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-12-07 11:04:47,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-12-07 11:04:47,801 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 24 states. [2019-12-07 11:04:48,731 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-12-07 11:04:49,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:49,153 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-12-07 11:04:49,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-12-07 11:04:49,154 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-12-07 11:04:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:49,155 INFO L225 Difference]: With dead ends: 36 [2019-12-07 11:04:49,155 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 11:04:49,156 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2019-12-07 11:04:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 11:04:49,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-12-07 11:04:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 11:04:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-12-07 11:04:49,162 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2019-12-07 11:04:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:49,163 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-12-07 11:04:49,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-12-07 11:04:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-12-07 11:04:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 11:04:49,165 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:04:49,165 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:04:49,365 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:04:49,366 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr1REQUIRES_VIOLATION, cmemsetErr0REQUIRES_VIOLATION]=== [2019-12-07 11:04:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:04:49,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2019-12-07 11:04:49,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:04:49,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827111587] [2019-12-07 11:04:49,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:04:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:04:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:49,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827111587] [2019-12-07 11:04:49,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598043252] [2019-12-07 11:04:49,689 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/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 [2019-12-07 11:04:49,766 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 11:04:49,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 11:04:49,768 INFO L264 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 71 conjunts are in the unsatisfiable core [2019-12-07 11:04:49,770 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:04:49,773 INFO L377 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 [2019-12-07 11:04:49,773 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:04:49,776 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:04:49,776 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:04:49,777 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 11:04:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:04:50,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:04:50,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2019-12-07 11:04:50,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246723923] [2019-12-07 11:04:50,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-12-07 11:04:50,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:04:50,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-12-07 11:04:50,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2019-12-07 11:04:50,067 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2019-12-07 11:04:51,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:04:51,344 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-12-07 11:04:51,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-07 11:04:51,344 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2019-12-07 11:04:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:04:51,345 INFO L225 Difference]: With dead ends: 40 [2019-12-07 11:04:51,345 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:04:51,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2019-12-07 11:04:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:04:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:04:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:04:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:04:51,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-07 11:04:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:04:51,348 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:04:51,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-12-07 11:04:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:04:51,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:04:51,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:04:51,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:04:51 BoogieIcfgContainer [2019-12-07 11:04:51,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:04:51,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:04:51,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:04:51,559 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:04:51,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:04:44" (3/4) ... [2019-12-07 11:04:51,565 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:04:51,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-12-07 11:04:51,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-12-07 11:04:51,578 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-12-07 11:04:51,578 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-12-07 11:04:51,578 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-12-07 11:04:51,578 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-12-07 11:04:51,579 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-12-07 11:04:51,579 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-12-07 11:04:51,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 11:04:51,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 11:04:51,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:04:51,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:04:51,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a6db512-7c67-41df-a2d6-9983cbf564b2/bin/uautomizer/witness.graphml [2019-12-07 11:04:51,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:04:51,622 INFO L168 Benchmark]: Toolchain (without parser) took 7573.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -212.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:04:51,622 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:04:51,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -128.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:51,622 INFO L168 Benchmark]: Boogie Preprocessor took 34.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:51,623 INFO L168 Benchmark]: RCFGBuilder took 264.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:51,623 INFO L168 Benchmark]: TraceAbstraction took 6905.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -150.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:04:51,623 INFO L168 Benchmark]: Witness Printer took 62.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:04:51,625 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -128.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6905.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -150.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 62.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 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. Result: SAFE, OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 417 SDslu, 357 SDs, 0 SdLazy, 1594 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 3.9s 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, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 4 QuantifiedInterpolants, 56942 SizeOfPredicates, 35 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 163 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...