./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC --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 64bit --witnessprinter.graph.data.programhash 3f34751565a9d43a481fab038d13037e70cdccbf ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:22:41,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:22:41,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:22:41,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:22:41,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:22:41,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:22:41,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:22:41,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:22:41,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:22:41,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:22:41,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:22:41,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:22:41,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:22:41,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:22:41,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:22:41,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:22:41,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:22:41,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:22:41,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:22:41,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:22:41,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:22:41,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:22:41,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:22:41,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:22:41,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:22:41,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:22:41,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:22:41,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:22:41,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:22:41,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:22:41,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:22:41,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:22:41,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:22:41,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:22:41,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:22:41,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:22:41,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:22:41,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:22:41,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:22:41,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:22:41,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:22:41,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-10-11 00:22:41,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:22:41,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:22:41,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:22:41,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:22:41,974 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:22:41,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:22:41,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:22:41,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:22:41,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:22:41,982 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:22:41,983 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:22:41,984 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 00:22:41,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:22:41,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:22:41,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:22:41,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:22:41,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:22:41,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:22:41,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:22:41,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:22:41,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:22:41,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:22:41,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:22:41,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:22:41,988 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_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f34751565a9d43a481fab038d13037e70cdccbf [2021-10-11 00:22:42,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:22:42,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:22:42,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:22:42,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:22:42,334 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:22:42,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2021-10-11 00:22:42,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/data/287f72cd4/15fe9d7f9de246b48c61fe86a3931b22/FLAGd91b59f60 [2021-10-11 00:22:42,972 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:22:42,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2021-10-11 00:22:42,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/data/287f72cd4/15fe9d7f9de246b48c61fe86a3931b22/FLAGd91b59f60 [2021-10-11 00:22:43,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/data/287f72cd4/15fe9d7f9de246b48c61fe86a3931b22 [2021-10-11 00:22:43,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:22:43,347 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:22:43,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:43,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:22:43,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:22:43,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da05c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43, skipping insertion in model container [2021-10-11 00:22:43,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:22:43,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:22:43,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:43,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:22:43,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:43,581 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:22:43,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43 WrapperNode [2021-10-11 00:22:43,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:43,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:22:43,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:22:43,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:22:43,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... [2021-10-11 00:22:43,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:22:43,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:22:43,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:22:43,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:22:43,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:22:43,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:22:43,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:43,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:22:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:22:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:22:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:22:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:22:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:22:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:22:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:22:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:22:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:22:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:22:43,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:43,936 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-11 00:22:43,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:43 BoogieIcfgContainer [2021-10-11 00:22:43,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:43,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:22:43,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:22:43,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:22:43,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:22:43" (1/3) ... [2021-10-11 00:22:43,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6406af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:43, skipping insertion in model container [2021-10-11 00:22:43,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:43" (2/3) ... [2021-10-11 00:22:43,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6406af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:43, skipping insertion in model container [2021-10-11 00:22:43,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:43" (3/3) ... [2021-10-11 00:22:43,981 INFO L111 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c [2021-10-11 00:22:44,001 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:22:44,005 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2021-10-11 00:22:44,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-10-11 00:22:44,065 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:22:44,065 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:22:44,065 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:22:44,065 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:44,065 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:44,066 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:22:44,066 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:44,066 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:22:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-10-11 00:22:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:22:44,090 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:44,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:44,102 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 00:22:44,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:44,121 INFO L82 PathProgramCache]: Analyzing trace with hash 222801388, now seen corresponding path program 1 times [2021-10-11 00:22:44,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:44,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387246910] [2021-10-11 00:22:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:22:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:44,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387246910] [2021-10-11 00:22:44,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:44,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:44,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171094954] [2021-10-11 00:22:44,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:22:44,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:44,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:22:44,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,336 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2021-10-11 00:22:44,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:44,473 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-10-11 00:22:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:22:44,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:22:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:44,486 INFO L225 Difference]: With dead ends: 25 [2021-10-11 00:22:44,489 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 00:22:44,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 00:22:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-11 00:22:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 00:22:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-10-11 00:22:44,534 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 7 [2021-10-11 00:22:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:44,535 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-10-11 00:22:44,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:22:44,536 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-10-11 00:22:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:22:44,538 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:44,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:44,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:22:44,539 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 00:22:44,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:44,540 INFO L82 PathProgramCache]: Analyzing trace with hash 222801389, now seen corresponding path program 1 times [2021-10-11 00:22:44,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:44,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081798086] [2021-10-11 00:22:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:22:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:44,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081798086] [2021-10-11 00:22:44,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:44,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:44,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408312696] [2021-10-11 00:22:44,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:22:44,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:44,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:22:44,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,658 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2021-10-11 00:22:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:44,719 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-11 00:22:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:22:44,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:22:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:44,722 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:22:44,723 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 00:22:44,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 00:22:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 00:22:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:22:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 00:22:44,732 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2021-10-11 00:22:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:44,733 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 00:22:44,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:22:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 00:22:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:22:44,735 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:44,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:44,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:22:44,736 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 00:22:44,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:44,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1751663173, now seen corresponding path program 1 times [2021-10-11 00:22:44,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:44,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231797080] [2021-10-11 00:22:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:22:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:44,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231797080] [2021-10-11 00:22:44,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:44,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:44,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28059428] [2021-10-11 00:22:44,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:22:44,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:44,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:22:44,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,856 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2021-10-11 00:22:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:44,899 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-11 00:22:44,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:22:44,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 00:22:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:44,902 INFO L225 Difference]: With dead ends: 17 [2021-10-11 00:22:44,902 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 00:22:44,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:22:44,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 00:22:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 00:22:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 00:22:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-11 00:22:44,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2021-10-11 00:22:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:44,916 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-11 00:22:44,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:22:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-11 00:22:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:22:44,917 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:44,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:44,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:22:44,918 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 00:22:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash -278868728, now seen corresponding path program 1 times [2021-10-11 00:22:44,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:44,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078406469] [2021-10-11 00:22:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:45,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:22:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:45,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078406469] [2021-10-11 00:22:45,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:45,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:22:45,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312861791] [2021-10-11 00:22:45,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:22:45,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:45,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:22:45,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:22:45,020 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2021-10-11 00:22:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:45,065 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-11 00:22:45,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:22:45,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 00:22:45,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:45,066 INFO L225 Difference]: With dead ends: 16 [2021-10-11 00:22:45,066 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:22:45,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:22:45,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:22:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:22:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:22:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:22:45,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 00:22:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:45,068 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:22:45,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:22:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:22:45,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:22:45,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:22:45,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:22:45 BoogieIcfgContainer [2021-10-11 00:22:45,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:22:45,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:45,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:45,075 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:45,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:43" (3/4) ... [2021-10-11 00:22:45,079 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:22:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-11 00:22:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-11 00:22:45,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:22:45,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:22:45,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:22:45,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:22:45,127 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ce4227-a01a-4e45-975e-99f5a8057465/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:22:45,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:45,129 INFO L168 Benchmark]: Toolchain (without parser) took 1781.22 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 86.6 MB in the beginning and 74.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:45,130 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 115.3 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:45,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.96 ms. Allocated memory is still 115.3 MB. Free memory was 86.3 MB in the beginning and 90.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:45,131 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 89.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:45,131 INFO L168 Benchmark]: RCFGBuilder took 324.34 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 76.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:45,132 INFO L168 Benchmark]: TraceAbstraction took 1133.95 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 75.9 MB in the beginning and 76.8 MB in the end (delta: -835.1 kB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:45,133 INFO L168 Benchmark]: Witness Printer took 53.02 ms. Allocated memory is still 140.5 MB. Free memory was 76.8 MB in the beginning and 74.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:45,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 115.3 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.96 ms. Allocated memory is still 115.3 MB. Free memory was 86.3 MB in the beginning and 90.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.33 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 89.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 324.34 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 76.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1133.95 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 75.9 MB in the beginning and 76.8 MB in the end (delta: -835.1 kB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Witness Printer took 53.02 ms. Allocated memory is still 140.5 MB. Free memory was 76.8 MB in the beginning and 74.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 39 SDslu, 31 SDs, 0 SdLazy, 107 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1097 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...