./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF --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 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:08:06,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:08:06,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:08:06,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:08:06,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:08:06,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:08:06,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:08:06,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:08:06,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:08:06,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:08:06,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:08:06,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:08:06,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:08:06,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:08:06,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:08:06,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:08:06,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:08:06,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:08:06,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:08:06,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:08:06,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:08:06,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:08:06,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:08:06,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:08:06,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:08:06,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:08:06,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:08:06,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:08:06,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:08:06,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:08:06,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:08:06,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:08:06,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:08:06,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:08:06,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:08:06,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:08:06,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:08:06,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:08:06,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:08:06,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:08:06,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:08:06,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 07:08:06,339 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:08:06,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:08:06,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:08:06,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:08:06,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:08:06,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:08:06,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:08:06,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:08:06,348 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:08:06,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:08:06,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:08:06,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:08:06,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:08:06,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:08:06,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:08:06,352 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 07:08:06,352 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 07:08:06,352 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 07:08:06,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:08:06,353 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:08:06,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:08:06,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:08:06,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:08:06,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:08:06,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:08:06,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:06,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:08:06,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:08:06,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:08:06,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:08:06,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:08:06,359 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_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2021-11-20 07:08:06,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:08:06,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:08:06,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:08:06,659 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:08:06,659 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:08:06,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/array-examples/relax-1.i [2021-11-20 07:08:06,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/data/0cbfb0afb/77a9c75e5ae540ad8fd9dcd11eb59e54/FLAG9c62f8f74 [2021-11-20 07:08:07,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:08:07,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/sv-benchmarks/c/array-examples/relax-1.i [2021-11-20 07:08:07,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/data/0cbfb0afb/77a9c75e5ae540ad8fd9dcd11eb59e54/FLAG9c62f8f74 [2021-11-20 07:08:07,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/data/0cbfb0afb/77a9c75e5ae540ad8fd9dcd11eb59e54 [2021-11-20 07:08:07,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:08:07,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:08:07,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:07,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:08:07,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:08:07,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:07" (1/1) ... [2021-11-20 07:08:07,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367851a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:07, skipping insertion in model container [2021-11-20 07:08:07,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:07" (1/1) ... [2021-11-20 07:08:07,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:08:07,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:08:07,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-11-20 07:08:07,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:07,975 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:08:07,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-11-20 07:08:08,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:08,077 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:08:08,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08 WrapperNode [2021-11-20 07:08:08,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:08,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:08,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:08:08,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:08:08,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,146 INFO L137 Inliner]: procedures = 120, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2021-11-20 07:08:08,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:08,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:08:08,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:08:08,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:08:08,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:08:08,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:08:08,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:08:08,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:08:08,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (1/1) ... [2021-11-20 07:08:08,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:08,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:08:08,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:08:08,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:08:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:08:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 07:08:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 07:08:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:08:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:08:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:08:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:08:08,389 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:08:08,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:08:08,818 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:08:08,826 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:08:08,827 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 07:08:08,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:08 BoogieIcfgContainer [2021-11-20 07:08:08,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:08:08,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:08:08,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:08:08,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:08:08,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:08:07" (1/3) ... [2021-11-20 07:08:08,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efba878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:08, skipping insertion in model container [2021-11-20 07:08:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:08" (2/3) ... [2021-11-20 07:08:08,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efba878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:08, skipping insertion in model container [2021-11-20 07:08:08,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:08" (3/3) ... [2021-11-20 07:08:08,843 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2021-11-20 07:08:08,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:08:08,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-20 07:08:08,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:08:08,971 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:08:08,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-20 07:08:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 07:08:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 07:08:08,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:08,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 07:08:08,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-11-20 07:08:09,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-11-20 07:08:09,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:09,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866145023] [2021-11-20 07:08:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:09,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:08:09,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:08:09,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866145023] [2021-11-20 07:08:09,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866145023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:09,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:09,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:08:09,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667652640] [2021-11-20 07:08:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:09,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:08:09,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:08:09,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:08:09,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:08:09,267 INFO L87 Difference]: Start difference. First operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-20 07:08:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:08:09,356 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2021-11-20 07:08:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:08:09,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2021-11-20 07:08:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:08:09,368 INFO L225 Difference]: With dead ends: 94 [2021-11-20 07:08:09,369 INFO L226 Difference]: Without dead ends: 92 [2021-11-20 07:08:09,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:08:09,375 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 79 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:08:09,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 98 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:08:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-20 07:08:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-20 07:08:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 85 states have internal predecessors, (99), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 07:08:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2021-11-20 07:08:09,424 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2021-11-20 07:08:09,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:08:09,424 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2021-11-20 07:08:09,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-20 07:08:09,425 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2021-11-20 07:08:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 07:08:09,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:09,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 07:08:09,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:08:09,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-11-20 07:08:09,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash 28695943, now seen corresponding path program 1 times [2021-11-20 07:08:09,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:09,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762931036] [2021-11-20 07:08:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:09,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:08:09,471 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:08:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:08:09,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:08:09,540 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:08:09,542 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (31 of 32 remaining) [2021-11-20 07:08:09,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (30 of 32 remaining) [2021-11-20 07:08:09,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (29 of 32 remaining) [2021-11-20 07:08:09,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (28 of 32 remaining) [2021-11-20 07:08:09,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (27 of 32 remaining) [2021-11-20 07:08:09,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (26 of 32 remaining) [2021-11-20 07:08:09,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (25 of 32 remaining) [2021-11-20 07:08:09,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (24 of 32 remaining) [2021-11-20 07:08:09,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (23 of 32 remaining) [2021-11-20 07:08:09,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (22 of 32 remaining) [2021-11-20 07:08:09,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (21 of 32 remaining) [2021-11-20 07:08:09,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (20 of 32 remaining) [2021-11-20 07:08:09,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (19 of 32 remaining) [2021-11-20 07:08:09,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (18 of 32 remaining) [2021-11-20 07:08:09,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (17 of 32 remaining) [2021-11-20 07:08:09,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (16 of 32 remaining) [2021-11-20 07:08:09,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (15 of 32 remaining) [2021-11-20 07:08:09,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (14 of 32 remaining) [2021-11-20 07:08:09,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (13 of 32 remaining) [2021-11-20 07:08:09,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (12 of 32 remaining) [2021-11-20 07:08:09,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (11 of 32 remaining) [2021-11-20 07:08:09,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (10 of 32 remaining) [2021-11-20 07:08:09,552 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (9 of 32 remaining) [2021-11-20 07:08:09,552 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (8 of 32 remaining) [2021-11-20 07:08:09,552 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2021-11-20 07:08:09,553 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2021-11-20 07:08:09,553 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2021-11-20 07:08:09,554 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2021-11-20 07:08:09,554 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2021-11-20 07:08:09,554 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2021-11-20 07:08:09,555 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2021-11-20 07:08:09,555 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2021-11-20 07:08:09,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:08:09,560 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:08:09,565 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:08:09,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:08:09 BoogieIcfgContainer [2021-11-20 07:08:09,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:08:09,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:08:09,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:08:09,594 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:08:09,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:08" (3/4) ... [2021-11-20 07:08:09,597 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 07:08:09,638 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe9190e-898d-464e-a8e6-a936b22913fa/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:08:09,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:08:09,639 INFO L158 Benchmark]: Toolchain (without parser) took 2057.70ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 77.5MB in the beginning and 85.7MB in the end (delta: -8.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,640 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:08:09,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.49ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 77.5MB in the end (delta: 71.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.07ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,642 INFO L158 Benchmark]: Boogie Preprocessor took 35.29ms. Allocated memory is still 111.1MB. Free memory was 75.4MB in the beginning and 73.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,642 INFO L158 Benchmark]: RCFGBuilder took 645.68ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 56.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,643 INFO L158 Benchmark]: TraceAbstraction took 761.00ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 56.0MB in the beginning and 87.8MB in the end (delta: -31.8MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,644 INFO L158 Benchmark]: Witness Printer took 44.63ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:08:09,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.49ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 77.5MB in the end (delta: 71.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.07ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.29ms. Allocated memory is still 111.1MB. Free memory was 75.4MB in the beginning and 73.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.68ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 56.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 761.00ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 56.0MB in the beginning and 87.8MB in the end (delta: -31.8MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 44.63ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 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) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=2, \old(pat_length)=1, a={-1:0}, a={-1:0}, a_length=2, i=0, pat={-2:0}, pat={-2:0}, pat_length=1, shift=0] [L582] COND TRUE i