./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/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_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt --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 0.2.1-dev-4e77c04 [2021-10-13 00:25:01,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:25:01,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:25:01,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:25:01,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:25:01,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:25:01,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:25:01,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:25:01,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:25:01,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:25:01,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:25:01,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:25:01,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:25:01,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:25:01,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:25:01,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:25:01,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:25:01,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:25:01,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:25:01,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:25:01,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:25:01,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:25:01,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:25:01,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:25:01,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:25:01,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:25:01,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:25:01,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:25:01,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:25:01,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:25:01,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:25:01,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:25:01,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:25:01,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:25:01,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:25:01,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:25:01,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:25:01,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:25:01,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:25:01,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:25:01,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:25:01,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:25:01,277 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:25:01,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:25:01,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:25:01,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:25:01,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:25:01,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:25:01,286 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:25:01,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:25:01,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:25:01,287 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:25:01,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:25:01,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:25:01,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:25:01,289 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:25:01,289 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:25:01,289 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:25:01,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:25:01,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:25:01,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:25:01,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:25:01,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:25:01,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:25:01,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:25:01,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:25:01,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:25:01,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:25:01,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:25:01,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:25:01,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:25:01,294 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_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2021-10-13 00:25:01,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:25:01,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:25:01,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:25:01,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:25:01,607 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:25:01,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-10-13 00:25:01,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/data/79401f6ca/461b1f4023d741e28b60e01a470a3a20/FLAG3e8a91d40 [2021-10-13 00:25:02,218 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:25:02,218 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-10-13 00:25:02,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/data/79401f6ca/461b1f4023d741e28b60e01a470a3a20/FLAG3e8a91d40 [2021-10-13 00:25:02,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/data/79401f6ca/461b1f4023d741e28b60e01a470a3a20 [2021-10-13 00:25:02,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:25:02,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:25:02,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:02,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:25:02,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:25:02,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:02,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc69725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02, skipping insertion in model container [2021-10-13 00:25:02,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:02,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:25:02,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:25:02,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:02,920 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:25:02,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:02,984 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:25:02,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02 WrapperNode [2021-10-13 00:25:02,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:02,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:25:02,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:25:02,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:25:02,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:02,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:25:03,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:25:03,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:25:03,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:25:03,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (1/1) ... [2021-10-13 00:25:03,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:25:03,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:03,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:03,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:25:03,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:25:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:25:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:25:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:25:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:25:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:25:03,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:25:03,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2021-10-13 00:25:03,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:25:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:25:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:25:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:25:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:25:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:25:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:25:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:25:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:25:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:25:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:25:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:25:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:25:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:25:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:25:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:25:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:25:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:25:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:25:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:25:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:25:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:25:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:25:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:25:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:25:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:25:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:25:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:25:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:25:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:25:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:25:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:25:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:25:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:25:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:25:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:25:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:25:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:25:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:25:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:25:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:25:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:25:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:25:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:25:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:25:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:25:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:25:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:25:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:25:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:25:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:25:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:25:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:25:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:25:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:25:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:25:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:25:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:25:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:25:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:25:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:25:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:25:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:25:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:25:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:25:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:25:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:25:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:25:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:25:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:25:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:25:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:25:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:25:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:25:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:25:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:25:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:25:03,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:25:03,511 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:25:03,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:03 BoogieIcfgContainer [2021-10-13 00:25:03,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:25:03,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:25:03,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:25:03,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:25:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:25:02" (1/3) ... [2021-10-13 00:25:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acfeba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:25:03, skipping insertion in model container [2021-10-13 00:25:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:02" (2/3) ... [2021-10-13 00:25:03,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acfeba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:25:03, skipping insertion in model container [2021-10-13 00:25:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:03" (3/3) ... [2021-10-13 00:25:03,523 INFO L111 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2021-10-13 00:25:03,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:25:03,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 00:25:03,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:25:03,613 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:25:03,613 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 00:25:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:25:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:25:03,643 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:03,644 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:03,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting cmemsetErr1REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:03,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2021-10-13 00:25:03,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:03,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715019305] [2021-10-13 00:25:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:03,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:04,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:04,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715019305] [2021-10-13 00:25:04,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715019305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:04,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:04,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 00:25:04,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023701186] [2021-10-13 00:25:04,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:25:04,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:04,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:25:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:25:04,127 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:04,349 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-10-13 00:25:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:25:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-10-13 00:25:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:04,358 INFO L225 Difference]: With dead ends: 32 [2021-10-13 00:25:04,359 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:25:04,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 190.2ms TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:25:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:25:04,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-10-13 00:25:04,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:04,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-10-13 00:25:04,391 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2021-10-13 00:25:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:04,392 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-13 00:25:04,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-10-13 00:25:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:25:04,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:04,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:04,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:25:04,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting cmemsetErr0REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:04,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2021-10-13 00:25:04,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:04,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068576761] [2021-10-13 00:25:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:04,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:04,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:04,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068576761] [2021-10-13 00:25:04,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068576761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:04,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:04,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:25:04,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316119476] [2021-10-13 00:25:04,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:25:04,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:04,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:25:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:25:04,575 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:04,723 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-13 00:25:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:25:04,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-10-13 00:25:04,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:04,727 INFO L225 Difference]: With dead ends: 29 [2021-10-13 00:25:04,727 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:25:04,729 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.2ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:25:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:25:04,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-10-13 00:25:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2021-10-13 00:25:04,737 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2021-10-13 00:25:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:04,738 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-10-13 00:25:04,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-10-13 00:25:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:25:04,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:04,739 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:04,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:25:04,740 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:04,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2021-10-13 00:25:04,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:04,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423326209] [2021-10-13 00:25:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:04,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-13 00:25:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:04,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:04,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423326209] [2021-10-13 00:25:04,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423326209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:04,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:04,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:25:04,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682822568] [2021-10-13 00:25:04,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:25:04,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:25:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:25:04,887 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:05,079 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-10-13 00:25:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:25:05,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2021-10-13 00:25:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:05,084 INFO L225 Difference]: With dead ends: 39 [2021-10-13 00:25:05,085 INFO L226 Difference]: Without dead ends: 39 [2021-10-13 00:25:05,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 117.5ms TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:25:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-13 00:25:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-10-13 00:25:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-13 00:25:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-10-13 00:25:05,104 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2021-10-13 00:25:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:05,105 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-10-13 00:25:05,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-10-13 00:25:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:25:05,106 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:05,106 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:05,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:25:05,107 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:05,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:05,107 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2021-10-13 00:25:05,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:05,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490782405] [2021-10-13 00:25:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:05,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-13 00:25:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:05,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:05,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490782405] [2021-10-13 00:25:05,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490782405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:05,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:05,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 00:25:05,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283289982] [2021-10-13 00:25:05,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:25:05,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:05,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:25:05,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:25:05,293 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:05,462 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-10-13 00:25:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:25:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2021-10-13 00:25:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:05,463 INFO L225 Difference]: With dead ends: 33 [2021-10-13 00:25:05,464 INFO L226 Difference]: Without dead ends: 30 [2021-10-13 00:25:05,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 123.2ms TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:25:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-13 00:25:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-10-13 00:25:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-10-13 00:25:05,468 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2021-10-13 00:25:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:05,469 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-10-13 00:25:05,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-10-13 00:25:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:25:05,470 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:05,470 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:05,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:25:05,470 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting cmemsetErr1REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:05,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2021-10-13 00:25:05,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:05,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538871634] [2021-10-13 00:25:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:05,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:05,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:05,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538871634] [2021-10-13 00:25:05,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538871634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:05,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:05,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:25:05,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813986518] [2021-10-13 00:25:05,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:25:05,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:05,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:25:05,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:25:05,616 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:05,735 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2021-10-13 00:25:05,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:25:05,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-13 00:25:05,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:05,736 INFO L225 Difference]: With dead ends: 41 [2021-10-13 00:25:05,736 INFO L226 Difference]: Without dead ends: 41 [2021-10-13 00:25:05,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 74.1ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:25:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-13 00:25:05,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-10-13 00:25:05,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:25:05,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-10-13 00:25:05,742 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2021-10-13 00:25:05,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:05,742 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-13 00:25:05,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:05,743 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-10-13 00:25:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:25:05,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:05,744 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:05,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:25:05,744 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting cmemsetErr1REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:05,745 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2021-10-13 00:25:05,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:05,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497283309] [2021-10-13 00:25:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:05,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:06,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:06,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:06,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497283309] [2021-10-13 00:25:06,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497283309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:06,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614270398] [2021-10-13 00:25:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:06,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:06,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:06,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:25:06,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:25:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:06,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 00:25:06,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:06,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:25:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:06,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614270398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:06,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:25:06,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-10-13 00:25:06,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540367163] [2021-10-13 00:25:06,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 00:25:06,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 00:25:06,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2021-10-13 00:25:06,788 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 22 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:07,428 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-10-13 00:25:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:25:07,429 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-13 00:25:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:07,430 INFO L225 Difference]: With dead ends: 44 [2021-10-13 00:25:07,430 INFO L226 Difference]: Without dead ends: 44 [2021-10-13 00:25:07,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 804.7ms TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2021-10-13 00:25:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-13 00:25:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-10-13 00:25:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 36 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:25:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-10-13 00:25:07,435 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2021-10-13 00:25:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:07,436 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-10-13 00:25:07,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:07,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-10-13 00:25:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:25:07,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:07,437 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:07,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:07,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:07,637 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2021-10-13 00:25:07,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:07,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502582712] [2021-10-13 00:25:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:07,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-13 00:25:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:07,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:07,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502582712] [2021-10-13 00:25:07,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502582712] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:25:07,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:07,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:25:07,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613176775] [2021-10-13 00:25:07,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:25:07,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:07,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:25:07,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:25:07,753 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:07,827 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-10-13 00:25:07,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:25:07,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-10-13 00:25:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:07,829 INFO L225 Difference]: With dead ends: 42 [2021-10-13 00:25:07,829 INFO L226 Difference]: Without dead ends: 25 [2021-10-13 00:25:07,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.4ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:25:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-13 00:25:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-13 00:25:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-13 00:25:07,841 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2021-10-13 00:25:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:07,841 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-13 00:25:07,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:25:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-13 00:25:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:25:07,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:07,842 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:07,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:25:07,843 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting cmemsetErr1REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2021-10-13 00:25:07,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:07,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892024513] [2021-10-13 00:25:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:07,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:08,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:08,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892024513] [2021-10-13 00:25:08,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892024513] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:08,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369597986] [2021-10-13 00:25:08,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:25:08,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:08,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:25:08,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:25:08,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:25:08,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:25:08,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 00:25:08,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:08,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:25:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:08,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369597986] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:08,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:25:08,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2021-10-13 00:25:08,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160163365] [2021-10-13 00:25:08,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 00:25:08,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 00:25:08,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2021-10-13 00:25:08,990 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:10,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:10,186 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2021-10-13 00:25:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 00:25:10,187 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-10-13 00:25:10,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:10,188 INFO L225 Difference]: With dead ends: 36 [2021-10-13 00:25:10,188 INFO L226 Difference]: Without dead ends: 36 [2021-10-13 00:25:10,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1460.3ms TimeCoverageRelationStatistics Valid=221, Invalid=1849, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 00:25:10,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-13 00:25:10,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-13 00:25:10,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-10-13 00:25:10,192 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2021-10-13 00:25:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:10,192 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-10-13 00:25:10,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-10-13 00:25:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:25:10,194 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:25:10,194 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:25:10,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:10,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:10,406 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting cmemsetErr1REQUIRES_VIOLATION === [cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:25:10,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:10,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2021-10-13 00:25:10,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:10,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214223225] [2021-10-13 00:25:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:10,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:25:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:11,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:25:11,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214223225] [2021-10-13 00:25:11,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214223225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:11,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466490508] [2021-10-13 00:25:11,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:25:11,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:11,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:11,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:25:11,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:25:11,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-13 00:25:11,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:25:11,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-13 00:25:11,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:11,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:25:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:25:12,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466490508] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:25:12,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:25:12,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 16] total 37 [2021-10-13 00:25:12,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750939802] [2021-10-13 00:25:12,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-13 00:25:12,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:25:12,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-13 00:25:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 00:25:12,123 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:14,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:25:14,160 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-13 00:25:14,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 00:25:14,160 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-10-13 00:25:14,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:25:14,161 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:25:14,161 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:25:14,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 2416.6ms TimeCoverageRelationStatistics Valid=362, Invalid=3544, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 00:25:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:25:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:25:14,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:25:14,163 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-10-13 00:25:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:25:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:25:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:25:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:25:14,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:25:14,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location cmemsetErr0REQUIRES_VIOLATION [2021-10-13 00:25:14,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location cmemsetErr1REQUIRES_VIOLATION [2021-10-13 00:25:14,166 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:25:14,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:14,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:14,370 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:25:14,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:25:14 BoogieIcfgContainer [2021-10-13 00:25:14,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:25:14,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:25:14,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:25:14,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:25:14,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:03" (3/4) ... [2021-10-13 00:25:14,376 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:25:14,382 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-13 00:25:14,382 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2021-10-13 00:25:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-13 00:25:14,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-13 00:25:14,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 00:25:14,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:25:14,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:25:14,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:25:14,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:25:14,421 INFO L168 Benchmark]: Toolchain (without parser) took 11883.73 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 52.2 MB in the beginning and 57.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,422 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:14,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.78 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.9 MB in the beginning and 79.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,423 INFO L168 Benchmark]: Boogie Preprocessor took 48.61 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 77.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,423 INFO L168 Benchmark]: RCFGBuilder took 477.28 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 60.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,424 INFO L168 Benchmark]: TraceAbstraction took 10857.37 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.6 MB in the beginning and 60.5 MB in the end (delta: -867.9 kB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,424 INFO L168 Benchmark]: Witness Printer took 47.76 ms. Allocated memory is still 132.1 MB. Free memory was 60.5 MB in the beginning and 57.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:14,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 431.78 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.9 MB in the beginning and 79.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.61 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 77.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 477.28 ms. Allocated memory is still 109.1 MB. Free memory was 77.2 MB in the beginning and 60.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10857.37 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.6 MB in the beginning and 60.5 MB in the end (delta: -867.9 kB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Witness Printer took 47.76 ms. Allocated memory is still 132.1 MB. Free memory was 60.5 MB in the beginning and 57.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10767.6ms, OverallIterations: 9, TraceHistogramMax: 5, EmptinessCheckTime: 21.2ms, AutomataDifference: 4859.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 162 SDtfs, 442 SDslu, 432 SDs, 0 SdLazy, 2001 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1182.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 5296.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=6, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.8ms SsaConstructionTime, 421.2ms SatisfiabilityAnalysisTime, 4125.7ms InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 2008 SizeOfPredicates, 35 NumberOfNonLiveVariables, 397 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 13/100 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 00:25:14,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c827fdd9-0738-4787-8943-0a97c3521fff/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...