./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-examples/relax-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dbd52e95eb1af7e22fe9d404e18d13efde04c9db ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 05:07:47,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 05:07:47,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 05:07:47,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 05:07:47,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 05:07:47,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 05:07:47,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 05:07:47,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 05:07:47,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 05:07:47,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 05:07:47,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 05:07:47,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 05:07:47,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 05:07:47,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 05:07:47,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 05:07:47,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 05:07:47,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 05:07:47,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 05:07:47,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 05:07:47,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 05:07:47,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 05:07:47,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 05:07:47,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 05:07:47,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 05:07:47,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 05:07:47,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 05:07:47,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 05:07:47,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 05:07:47,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 05:07:47,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 05:07:47,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 05:07:47,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 05:07:47,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 05:07:47,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 05:07:47,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 05:07:47,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 05:07:47,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 05:07:47,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 05:07:47,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 05:07:47,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 05:07:47,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 05:07:47,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 05:07:47,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 05:07:47,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 05:07:47,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 05:07:47,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 05:07:47,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 05:07:47,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 05:07:47,268 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 05:07:47,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 05:07:47,268 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 05:07:47,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 05:07:47,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 05:07:47,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 05:07:47,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 05:07:47,270 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 05:07:47,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 05:07:47,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 05:07:47,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 05:07:47,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:07:47,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 05:07:47,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 05:07:47,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 05:07:47,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 05:07:47,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 05:07:47,272 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd52e95eb1af7e22fe9d404e18d13efde04c9db [2021-08-27 05:07:47,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 05:07:47,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 05:07:47,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 05:07:47,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 05:07:47,580 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 05:07:47,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2021-08-27 05:07:47,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2704e2973/ea24b34343c24f77aee1ce6207adf935/FLAG05d0c4517 [2021-08-27 05:07:48,049 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 05:07:48,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2021-08-27 05:07:48,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2704e2973/ea24b34343c24f77aee1ce6207adf935/FLAG05d0c4517 [2021-08-27 05:07:48,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2704e2973/ea24b34343c24f77aee1ce6207adf935 [2021-08-27 05:07:48,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 05:07:48,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 05:07:48,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 05:07:48,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 05:07:48,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 05:07:48,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eee815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48, skipping insertion in model container [2021-08-27 05:07:48,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 05:07:48,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 05:07:48,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-08-27 05:07:48,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:07:48,389 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 05:07:48,401 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-08-27 05:07:48,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:07:48,470 INFO L208 MainTranslator]: Completed translation [2021-08-27 05:07:48,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48 WrapperNode [2021-08-27 05:07:48,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 05:07:48,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 05:07:48,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 05:07:48,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 05:07:48,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 05:07:48,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 05:07:48,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 05:07:48,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 05:07:48,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (1/1) ... [2021-08-27 05:07:48,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:07:48,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:07:48,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 05:07:48,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 05:07:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 05:07:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2021-08-27 05:07:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 05:07:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 05:07:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 05:07:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 05:07:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 05:07:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 05:07:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 05:07:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 05:07:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 05:07:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 05:07:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 05:07:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2021-08-27 05:07:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 05:07:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 05:07:49,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 05:07:49,094 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-27 05:07:49,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:07:49 BoogieIcfgContainer [2021-08-27 05:07:49,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 05:07:49,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 05:07:49,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 05:07:49,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 05:07:49,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:07:48" (1/3) ... [2021-08-27 05:07:49,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a5f25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:07:49, skipping insertion in model container [2021-08-27 05:07:49,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:07:48" (2/3) ... [2021-08-27 05:07:49,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a5f25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:07:49, skipping insertion in model container [2021-08-27 05:07:49,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:07:49" (3/3) ... [2021-08-27 05:07:49,100 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2021-08-27 05:07:49,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 05:07:49,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-08-27 05:07:49,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 05:07:49,140 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 [2021-08-27 05:07:49,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-08-27 05:07:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 57 states have (on average 1.912280701754386) internal successors, (109), 90 states have internal predecessors, (109), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-08-27 05:07:49,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 05:07:49,159 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:07:49,159 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:07:49,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting is_relaxed_prefixErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION (and 29 more)] === [2021-08-27 05:07:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:07:49,167 INFO L82 PathProgramCache]: Analyzing trace with hash -3143168, now seen corresponding path program 1 times [2021-08-27 05:07:49,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:07:49,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426348231] [2021-08-27 05:07:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:07:49,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:07:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:07:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 05:07:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:07:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:07:49,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:07:49,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426348231] [2021-08-27 05:07:49,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426348231] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:07:49,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:07:49,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 05:07:49,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413252632] [2021-08-27 05:07:49,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 05:07:49,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:07:49,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 05:07:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 05:07:49,460 INFO L87 Difference]: Start difference. First operand has 103 states, 57 states have (on average 1.912280701754386) internal successors, (109), 90 states have internal predecessors, (109), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-08-27 05:07:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:07:49,711 INFO L93 Difference]: Finished difference Result 96 states and 113 transitions. [2021-08-27 05:07:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 05:07:49,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 11 [2021-08-27 05:07:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:07:49,717 INFO L225 Difference]: With dead ends: 96 [2021-08-27 05:07:49,717 INFO L226 Difference]: Without dead ends: 93 [2021-08-27 05:07:49,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 05:07:49,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-08-27 05:07:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-08-27 05:07:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 56 states have (on average 1.6964285714285714) internal successors, (95), 81 states have internal predecessors, (95), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 05:07:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2021-08-27 05:07:49,742 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 11 [2021-08-27 05:07:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:07:49,742 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2021-08-27 05:07:49,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-08-27 05:07:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2021-08-27 05:07:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 05:07:49,743 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:07:49,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:07:49,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 05:07:49,744 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting is_relaxed_prefixErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION (and 29 more)] === [2021-08-27 05:07:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:07:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash -3143167, now seen corresponding path program 1 times [2021-08-27 05:07:49,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:07:49,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490198778] [2021-08-27 05:07:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:07:49,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:07:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 05:07:49,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 05:07:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 05:07:49,811 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 05:07:49,811 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 05:07:49,812 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location is_relaxed_prefixErr1REQUIRES_VIOLATION [2021-08-27 05:07:49,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-08-27 05:07:49,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location is_relaxed_prefixErr0REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location is_relaxed_prefixErr2REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location is_relaxed_prefixErr3REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-08-27 05:07:49,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-08-27 05:07:49,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-08-27 05:07:49,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17REQUIRES_VIOLATION [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18REQUIRES_VIOLATION [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19REQUIRES_VIOLATION [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr21ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr22ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr23ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr24ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr25ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:07:49,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr26ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 05:07:49,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 05:07:49,822 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 05:07:49,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 05:07:49 BoogieIcfgContainer [2021-08-27 05:07:49,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 05:07:49,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 05:07:49,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 05:07:49,835 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 05:07:49,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:07:49" (3/4) ... [2021-08-27 05:07:49,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-27 05:07:49,857 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 05:07:49,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 05:07:49,858 INFO L168 Benchmark]: Toolchain (without parser) took 1778.77 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 32.0 MB in the beginning and 40.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,859 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:07:49,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.73 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 29.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,860 INFO L168 Benchmark]: Boogie Preprocessor took 52.98 ms. Allocated memory is still 54.5 MB. Free memory was 29.8 MB in the beginning and 27.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,860 INFO L168 Benchmark]: RCFGBuilder took 567.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 35.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,860 INFO L168 Benchmark]: TraceAbstraction took 738.67 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.2 MB in the beginning and 42.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,861 INFO L168 Benchmark]: Witness Printer took 22.30 ms. Allocated memory is still 81.8 MB. Free memory was 42.4 MB in the beginning and 40.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 05:07:49,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.73 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 29.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.98 ms. Allocated memory is still 54.5 MB. Free memory was 29.8 MB in the beginning and 27.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 567.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 35.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 738.67 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.2 MB in the beginning and 42.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 22.30 ms. Allocated memory is still 81.8 MB. Free memory was 42.4 MB in the beginning and 40.7 MB in the end (delta: 1.7 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 - CounterExampleResult [Line: 584]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={-1:0}, pat={-3:0}] [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={-1:0}, a={-1:0}, a_length=4294967294, i=0, pat={-3:0}, pat={-3:0}, pat_length=1, shift=0] [L582] COND TRUE i