./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa --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 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:48:58,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:48:58,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:48:58,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:48:58,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:48:58,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:48:58,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:48:58,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:48:58,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:48:58,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:48:58,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:48:58,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:48:58,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:48:58,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:48:58,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:48:58,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:48:58,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:48:58,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:48:58,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:48:58,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:48:58,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:48:58,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:48:58,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:48:58,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:48:58,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:48:58,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:48:58,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:48:58,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:48:58,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:48:58,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:48:58,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:48:58,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:48:58,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:48:58,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:48:58,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:48:58,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:48:58,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:48:58,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:48:58,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:48:58,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:48:58,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:48:58,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 23:48:58,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:48:58,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:48:58,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:48:58,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:48:58,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:48:58,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:48:58,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:48:58,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:48:58,532 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:48:58,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:48:58,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 23:48:58,533 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:48:58,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:48:58,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:48:58,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:48:58,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:48:58,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:48:58,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:48:58,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:48:58,535 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_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2021-12-06 23:48:58,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:48:58,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:48:58,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:48:58,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:48:58,737 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:48:58,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-examples/relax-1.i [2021-12-06 23:48:58,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/data/01dadc4db/c7de81597e874ef1b942b689e137dbe4/FLAGbfd039d12 [2021-12-06 23:48:59,199 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:48:59,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/sv-benchmarks/c/array-examples/relax-1.i [2021-12-06 23:48:59,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/data/01dadc4db/c7de81597e874ef1b942b689e137dbe4/FLAGbfd039d12 [2021-12-06 23:48:59,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/data/01dadc4db/c7de81597e874ef1b942b689e137dbe4 [2021-12-06 23:48:59,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:48:59,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:48:59,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:48:59,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:48:59,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:48:59,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f132499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59, skipping insertion in model container [2021-12-06 23:48:59,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:48:59,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:48:59,378 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_daa857e6-1164-4e31-af16-90be080e84d9/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-12-06 23:48:59,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:48:59,463 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:48:59,472 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_daa857e6-1164-4e31-af16-90be080e84d9/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2021-12-06 23:48:59,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:48:59,519 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:48:59,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59 WrapperNode [2021-12-06 23:48:59,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:48:59,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:48:59,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:48:59,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:48:59,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,557 INFO L137 Inliner]: procedures = 120, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2021-12-06 23:48:59,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:48:59,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:48:59,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:48:59,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:48:59,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:48:59,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:48:59,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:48:59,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:48:59,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (1/1) ... [2021-12-06 23:48:59,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:48:59,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:48:59,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:48:59,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:48:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:48:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 23:48:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:48:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:48:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:48:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:48:59,722 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:48:59,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:48:59,995 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:49:00,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:49:00,002 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 23:49:00,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:49:00 BoogieIcfgContainer [2021-12-06 23:49:00,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:49:00,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:49:00,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:49:00,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:49:00,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:48:59" (1/3) ... [2021-12-06 23:49:00,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beca6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:49:00, skipping insertion in model container [2021-12-06 23:49:00,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:59" (2/3) ... [2021-12-06 23:49:00,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beca6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:49:00, skipping insertion in model container [2021-12-06 23:49:00,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:49:00" (3/3) ... [2021-12-06 23:49:00,010 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2021-12-06 23:49:00,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:49:00,014 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-12-06 23:49:00,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:49:00,062 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 [2021-12-06 23:49:00,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-12-06 23:49:00,082 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) [2021-12-06 23:49:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-06 23:49:00,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:49:00,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-06 23:49:00,090 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-12-06 23:49:00,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:49:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-06 23:49:00,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:49:00,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922750363] [2021-12-06 23:49:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:49:00,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:49:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:49:00,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:49:00,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922750363] [2021-12-06 23:49:00,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922750363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:49:00,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:49:00,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:49:00,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883626555] [2021-12-06 23:49:00,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:49:00,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:49:00,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:49:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:49:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:49:00,268 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) [2021-12-06 23:49:00,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:49:00,328 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2021-12-06 23:49:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:49:00,330 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 [2021-12-06 23:49:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:49:00,338 INFO L225 Difference]: With dead ends: 94 [2021-12-06 23:49:00,339 INFO L226 Difference]: Without dead ends: 92 [2021-12-06 23:49:00,340 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 [2021-12-06 23:49:00,343 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:49:00,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 98 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:49:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-06 23:49:00,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-06 23:49:00,379 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) [2021-12-06 23:49:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2021-12-06 23:49:00,383 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2021-12-06 23:49:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:49:00,383 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2021-12-06 23:49:00,383 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) [2021-12-06 23:49:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2021-12-06 23:49:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-06 23:49:00,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:49:00,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-06 23:49:00,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:49:00,384 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 28 more)] === [2021-12-06 23:49:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:49:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash 28695943, now seen corresponding path program 1 times [2021-12-06 23:49:00,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:49:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853624888] [2021-12-06 23:49:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:49:00,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:49:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:49:00,414 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:49:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:49:00,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:49:00,447 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:49:00,448 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (31 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (30 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (29 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (28 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (27 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (26 of 32 remaining) [2021-12-06 23:49:00,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (25 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (24 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (23 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (22 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (21 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (20 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (19 of 32 remaining) [2021-12-06 23:49:00,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (18 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (17 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (16 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (15 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (14 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (13 of 32 remaining) [2021-12-06 23:49:00,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (12 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (11 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (10 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (9 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (8 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2021-12-06 23:49:00,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2021-12-06 23:49:00,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2021-12-06 23:49:00,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:49:00,457 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 23:49:00,460 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:49:00,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:49:00 BoogieIcfgContainer [2021-12-06 23:49:00,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:49:00,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:49:00,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:49:00,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:49:00,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:49:00" (3/4) ... [2021-12-06 23:49:00,478 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 23:49:00,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daa857e6-1164-4e31-af16-90be080e84d9/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:49:00,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:49:00,501 INFO L158 Benchmark]: Toolchain (without parser) took 1279.13ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 45.7MB in the end (delta: 29.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,501 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:49:00,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.25ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 58.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.68ms. Allocated memory is still 100.7MB. Free memory was 58.4MB in the beginning and 56.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,502 INFO L158 Benchmark]: Boogie Preprocessor took 23.85ms. Allocated memory is still 100.7MB. Free memory was 56.1MB in the beginning and 54.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,503 INFO L158 Benchmark]: RCFGBuilder took 422.17ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 36.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,503 INFO L158 Benchmark]: TraceAbstraction took 470.14ms. Allocated memory is still 100.7MB. Free memory was 36.5MB in the beginning and 47.7MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:49:00,503 INFO L158 Benchmark]: Witness Printer took 24.87ms. Allocated memory is still 100.7MB. Free memory was 47.7MB in the beginning and 45.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:49:00,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.25ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 58.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.68ms. Allocated memory is still 100.7MB. Free memory was 58.4MB in the beginning and 56.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.85ms. Allocated memory is still 100.7MB. Free memory was 56.1MB in the beginning and 54.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.17ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 36.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 470.14ms. Allocated memory is still 100.7MB. Free memory was 36.5MB in the beginning and 47.7MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 24.87ms. Allocated memory is still 100.7MB. Free memory was 47.7MB in the beginning and 45.7MB 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