./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:51:12,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:51:12,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:51:12,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:51:12,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:51:12,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:51:12,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:51:12,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:51:12,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:51:12,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:51:12,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:51:12,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:51:12,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:51:12,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:51:12,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:51:12,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:51:12,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:51:12,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:51:12,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:51:12,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:51:12,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:51:12,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:51:12,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:51:12,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:51:12,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:51:12,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:51:12,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:51:12,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:51:12,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:51:12,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:51:12,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:51:12,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:51:12,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:51:12,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:51:12,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:51:12,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:51:12,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:51:12,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:51:12,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:51:12,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:51:12,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:51:12,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 13:51:12,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:51:12,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:51:12,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:51:12,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:51:12,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:51:12,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:51:12,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:51:12,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:51:12,362 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:51:12,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:51:12,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:51:12,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:51:12,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:51:12,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:51:12,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:51:12,364 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:51:12,365 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:51:12,365 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:51:12,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:51:12,365 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:51:12,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:51:12,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:51:12,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:51:12,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:51:12,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:51:12,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:51:12,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:51:12,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:51:12,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:51:12,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:51:12,368 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_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2022-11-21 13:51:12,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:51:12,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:51:12,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:51:12,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:51:12,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:51:12,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-21 13:51:15,699 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:51:15,911 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:51:15,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-21 13:51:15,924 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/b8de114e2/001cddc4aeb94934aab0cedb354ac56b/FLAGc7701d295 [2022-11-21 13:51:15,970 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/b8de114e2/001cddc4aeb94934aab0cedb354ac56b [2022-11-21 13:51:15,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:51:15,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:51:16,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:51:16,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:51:16,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:51:16,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:15" (1/1) ... [2022-11-21 13:51:16,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76eeaa79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16, skipping insertion in model container [2022-11-21 13:51:16,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:15" (1/1) ... [2022-11-21 13:51:16,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:51:16,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:51:16,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:51:16,333 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:51:16,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:51:16,445 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:51:16,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16 WrapperNode [2022-11-21 13:51:16,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:51:16,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:51:16,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:51:16,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:51:16,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,509 INFO L138 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-21 13:51:16,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:51:16,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:51:16,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:51:16,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:51:16,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:51:16,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:51:16,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:51:16,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:51:16,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (1/1) ... [2022-11-21 13:51:16,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:51:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:51:16,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:51:16,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:51:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:51:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:51:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:51:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:51:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 13:51:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:51:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:51:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:51:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:51:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:51:16,726 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:51:16,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:51:16,886 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:51:16,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:51:16,894 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:51:16,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:16 BoogieIcfgContainer [2022-11-21 13:51:16,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:51:16,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:51:16,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:51:16,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:51:16,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:51:15" (1/3) ... [2022-11-21 13:51:16,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bfa855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:16, skipping insertion in model container [2022-11-21 13:51:16,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:16" (2/3) ... [2022-11-21 13:51:16,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bfa855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:16, skipping insertion in model container [2022-11-21 13:51:16,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:16" (3/3) ... [2022-11-21 13:51:16,926 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2022-11-21 13:51:16,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:51:16,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-21 13:51:17,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:51:17,030 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a194542, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:51:17,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-21 13:51:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-11-21 13:51:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:51:17,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:17,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:51:17,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-11-21 13:51:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:51:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592875783] [2022-11-21 13:51:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:17,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:51:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:17,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:51:17,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592875783] [2022-11-21 13:51:17,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592875783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:17,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:17,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:51:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45910634] [2022-11-21 13:51:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:17,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:51:17,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:51:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:51:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:51:17,464 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:17,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:17,516 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-21 13:51:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:51:17,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-21 13:51:17,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:17,526 INFO L225 Difference]: With dead ends: 20 [2022-11-21 13:51:17,526 INFO L226 Difference]: Without dead ends: 18 [2022-11-21 13:51:17,528 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:51:17,532 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:17,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:51:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-21 13:51:17,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-21 13:51:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-11-21 13:51:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-21 13:51:17,565 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2022-11-21 13:51:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:17,566 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-21 13:51:17,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-21 13:51:17,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:51:17,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:17,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:51:17,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:51:17,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:17,568 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-21 13:51:17,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:51:17,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97334789] [2022-11-21 13:51:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:17,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:51:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:17,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:51:17,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97334789] [2022-11-21 13:51:17,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97334789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:17,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:17,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:51:17,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714675866] [2022-11-21 13:51:17,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:17,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:51:17,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:51:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:51:17,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:51:17,712 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:17,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:17,737 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-21 13:51:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:51:17,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-21 13:51:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:17,738 INFO L225 Difference]: With dead ends: 13 [2022-11-21 13:51:17,738 INFO L226 Difference]: Without dead ends: 13 [2022-11-21 13:51:17,739 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:51:17,740 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:17,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:51:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-21 13:51:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-21 13:51:17,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-11-21 13:51:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-21 13:51:17,745 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2022-11-21 13:51:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:17,746 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-21 13:51:17,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:17,746 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-21 13:51:17,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 13:51:17,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:17,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:51:17,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:51:17,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2022-11-21 13:51:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:51:17,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531126372] [2022-11-21 13:51:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:51:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:17,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:17,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:51:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531126372] [2022-11-21 13:51:17,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531126372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:17,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:17,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:51:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621506926] [2022-11-21 13:51:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:17,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:51:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:51:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:51:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:51:17,905 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-21 13:51:17,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:17,945 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-21 13:51:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:51:17,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-21 13:51:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:17,947 INFO L225 Difference]: With dead ends: 17 [2022-11-21 13:51:17,947 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 13:51:17,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:51:17,949 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:17,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:51:17,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 13:51:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 13:51:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-11-21 13:51:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-21 13:51:17,954 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-11-21 13:51:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 13:51:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-21 13:51:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-21 13:51:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 13:51:17,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:17,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:51:17,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:51:17,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2022-11-21 13:51:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:51:17,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262000297] [2022-11-21 13:51:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:51:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:51:17,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:51:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:51:18,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:51:18,020 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:51:18,021 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2022-11-21 13:51:18,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-21 13:51:18,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-21 13:51:18,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-21 13:51:18,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-21 13:51:18,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-21 13:51:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2022-11-21 13:51:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2022-11-21 13:51:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2022-11-21 13:51:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2022-11-21 13:51:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2022-11-21 13:51:18,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:51:18,035 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 13:51:18,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:51:18,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:51:18 BoogieIcfgContainer [2022-11-21 13:51:18,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:51:18,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:51:18,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:51:18,071 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:51:18,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:16" (3/4) ... [2022-11-21 13:51:18,077 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:51:18,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:51:18,078 INFO L158 Benchmark]: Toolchain (without parser) took 2080.00ms. Allocated memory is still 146.8MB. Free memory was 119.8MB in the beginning and 103.2MB in the end (delta: 16.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-21 13:51:18,078 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:18,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.74ms. Allocated memory is still 146.8MB. Free memory was 119.2MB in the beginning and 102.8MB in the end (delta: 16.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 13:51:18,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.94ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 101.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:51:18,082 INFO L158 Benchmark]: Boogie Preprocessor took 22.28ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:18,082 INFO L158 Benchmark]: RCFGBuilder took 363.46ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 87.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 13:51:18,083 INFO L158 Benchmark]: TraceAbstraction took 1171.40ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 103.2MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:18,083 INFO L158 Benchmark]: Witness Printer took 6.63ms. Allocated memory is still 146.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:18,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.74ms. Allocated memory is still 146.8MB. Free memory was 119.2MB in the beginning and 102.8MB in the end (delta: 16.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.94ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 101.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.28ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.46ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 87.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1171.40ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 103.2MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.63ms. Allocated memory is still 146.8MB. Free memory is still 103.2MB. There was no memory consumed. 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 29 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces [2022-11-21 13:51:18,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:51:20,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:51:20,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:51:20,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:51:20,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:51:20,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:51:20,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:51:20,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:51:20,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:51:20,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:51:20,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:51:20,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:51:20,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:51:20,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:51:20,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:51:20,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:51:20,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:51:20,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:51:20,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:51:20,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:51:20,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:51:20,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:51:20,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:51:20,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:51:20,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:51:20,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:51:20,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:51:20,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:51:20,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:51:20,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:51:20,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:51:20,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:51:20,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:51:20,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:51:20,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:51:20,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:51:20,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:51:20,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:51:20,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:51:20,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:51:20,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:51:20,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 13:51:20,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:51:20,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:51:20,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:51:20,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:51:20,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:51:20,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:51:20,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:51:20,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:51:20,770 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:51:20,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:51:20,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:51:20,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:51:20,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:51:20,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:51:20,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:51:20,773 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:51:20,773 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:51:20,773 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:51:20,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:51:20,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:51:20,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 13:51:20,774 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 13:51:20,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:51:20,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:51:20,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:51:20,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:51:20,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:51:20,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:51:20,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:51:20,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:51:20,776 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 13:51:20,776 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 13:51:20,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 13:51:20,777 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2022-11-21 13:51:21,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:51:21,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:51:21,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:51:21,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:51:21,192 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:51:21,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-21 13:51:24,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:51:24,729 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:51:24,734 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-21 13:51:24,761 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/264343f1d/f762f2857b4b4cd1bece6f06f63cd43d/FLAGa8631bcef [2022-11-21 13:51:24,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/data/264343f1d/f762f2857b4b4cd1bece6f06f63cd43d [2022-11-21 13:51:24,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:51:24,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:51:24,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:51:24,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:51:24,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:51:24,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:24" (1/1) ... [2022-11-21 13:51:24,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ed9a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:24, skipping insertion in model container [2022-11-21 13:51:24,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:51:24" (1/1) ... [2022-11-21 13:51:24,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:51:24,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:51:25,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:51:25,135 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:51:25,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:51:25,269 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:51:25,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25 WrapperNode [2022-11-21 13:51:25,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:51:25,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:51:25,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:51:25,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:51:25,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,337 INFO L138 Inliner]: procedures = 127, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-21 13:51:25,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:51:25,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:51:25,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:51:25,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:51:25,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:51:25,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:51:25,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:51:25,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:51:25,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (1/1) ... [2022-11-21 13:51:25,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:51:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:51:25,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:51:25,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:51:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 13:51:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:51:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:51:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 13:51:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:51:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 13:51:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:51:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 13:51:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 13:51:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:51:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:51:25,569 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:51:25,571 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:51:25,778 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:51:25,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:51:25,785 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:51:25,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:25 BoogieIcfgContainer [2022-11-21 13:51:25,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:51:25,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:51:25,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:51:25,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:51:25,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:51:24" (1/3) ... [2022-11-21 13:51:25,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da00500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:25, skipping insertion in model container [2022-11-21 13:51:25,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:51:25" (2/3) ... [2022-11-21 13:51:25,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da00500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:51:25, skipping insertion in model container [2022-11-21 13:51:25,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:25" (3/3) ... [2022-11-21 13:51:25,797 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2022-11-21 13:51:25,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:51:25,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-21 13:51:25,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:51:25,891 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ee62b16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:51:25,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-21 13:51:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-11-21 13:51:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:51:25,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:25,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:51:25,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-11-21 13:51:25,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:51:25,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140195028] [2022-11-21 13:51:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:25,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:25,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:51:25,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:51:26,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 13:51:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:26,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:51:26,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:51:26,244 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-21 13:51:26,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-21 13:51:26,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:26,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:51:26,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:51:26,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140195028] [2022-11-21 13:51:26,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140195028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:26,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:26,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:51:26,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636785442] [2022-11-21 13:51:26,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:26,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:51:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:51:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:51:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:51:26,354 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:26,478 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-21 13:51:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:51:26,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-21 13:51:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:26,489 INFO L225 Difference]: With dead ends: 20 [2022-11-21 13:51:26,489 INFO L226 Difference]: Without dead ends: 18 [2022-11-21 13:51:26,490 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:51:26,496 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:26,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:51:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-21 13:51:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-21 13:51:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-11-21 13:51:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-21 13:51:26,534 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2022-11-21 13:51:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:26,535 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-21 13:51:26,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-21 13:51:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:51:26,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:26,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:51:26,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-21 13:51:26,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:26,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-21 13:51:26,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:51:26,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337932771] [2022-11-21 13:51:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:26,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:51:26,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:51:26,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 13:51:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:26,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:51:26,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:51:26,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:51:26,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-21 13:51:26,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-21 13:51:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:26,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:51:26,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:51:26,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337932771] [2022-11-21 13:51:26,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337932771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:26,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:26,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:51:26,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363698333] [2022-11-21 13:51:26,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:26,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:51:26,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:51:26,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:51:26,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:51:26,931 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:27,004 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-21 13:51:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:51:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-21 13:51:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:27,006 INFO L225 Difference]: With dead ends: 13 [2022-11-21 13:51:27,006 INFO L226 Difference]: Without dead ends: 13 [2022-11-21 13:51:27,006 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:51:27,007 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:27,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:51:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-21 13:51:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-21 13:51:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-11-21 13:51:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-21 13:51:27,011 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2022-11-21 13:51:27,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:27,012 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-21 13:51:27,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-21 13:51:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-21 13:51:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 13:51:27,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:27,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:51:27,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:51:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:27,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2022-11-21 13:51:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:51:27,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577029984] [2022-11-21 13:51:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:51:27,233 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:51:27,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 13:51:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:51:27,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:51:27,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:51:27,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-21 13:51:27,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-21 13:51:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:51:27,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:51:27,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:51:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577029984] [2022-11-21 13:51:27,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577029984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:51:27,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:51:27,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:51:27,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119140218] [2022-11-21 13:51:27,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:51:27,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:51:27,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:51:27,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:51:27,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:51:27,350 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-21 13:51:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:51:27,436 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-21 13:51:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:51:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-21 13:51:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:51:27,437 INFO L225 Difference]: With dead ends: 17 [2022-11-21 13:51:27,438 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 13:51:27,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:51:27,439 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:51:27,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:51:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 13:51:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 13:51:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-11-21 13:51:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-21 13:51:27,443 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-11-21 13:51:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:51:27,443 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 13:51:27,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-21 13:51:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-21 13:51:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 13:51:27,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:51:27,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:51:27,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:51:27,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:27,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-21 13:51:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:51:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2022-11-21 13:51:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:51:27,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245585619] [2022-11-21 13:51:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:51:27,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:27,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:51:27,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:51:27,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 13:51:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:51:27,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:51:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:51:27,842 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 13:51:27,842 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:51:27,843 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2022-11-21 13:51:27,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-21 13:51:27,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-21 13:51:27,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-21 13:51:27,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-21 13:51:27,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-21 13:51:27,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2022-11-21 13:51:27,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2022-11-21 13:51:27,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2022-11-21 13:51:27,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2022-11-21 13:51:27,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2022-11-21 13:51:27,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:51:28,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:51:28,058 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 13:51:28,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:51:28,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:51:28 BoogieIcfgContainer [2022-11-21 13:51:28,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:51:28,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:51:28,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:51:28,080 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:51:28,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:51:25" (3/4) ... [2022-11-21 13:51:28,087 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:51:28,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:51:28,088 INFO L158 Benchmark]: Toolchain (without parser) took 3305.95ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 42.7MB in the beginning and 56.2MB in the end (delta: -13.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,089 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 50.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:28,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.30ms. Allocated memory is still 73.4MB. Free memory was 42.4MB in the beginning and 48.1MB in the end (delta: -5.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.98ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,091 INFO L158 Benchmark]: Boogie Preprocessor took 37.73ms. Allocated memory is still 73.4MB. Free memory was 46.0MB in the beginning and 44.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,092 INFO L158 Benchmark]: RCFGBuilder took 410.42ms. Allocated memory is still 73.4MB. Free memory was 44.5MB in the beginning and 31.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,095 INFO L158 Benchmark]: TraceAbstraction took 2289.82ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 30.8MB in the beginning and 56.2MB in the end (delta: -25.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-21 13:51:28,095 INFO L158 Benchmark]: Witness Printer took 7.36ms. Allocated memory is still 100.7MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:51:28,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 50.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.30ms. Allocated memory is still 73.4MB. Free memory was 42.4MB in the beginning and 48.1MB in the end (delta: -5.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.98ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.73ms. Allocated memory is still 73.4MB. Free memory was 46.0MB in the beginning and 44.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.42ms. Allocated memory is still 73.4MB. Free memory was 44.5MB in the beginning and 31.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2289.82ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 30.8MB in the beginning and 56.2MB in the end (delta: -25.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 7.36ms. Allocated memory is still 100.7MB. Free memory is still 56.2MB. There was no memory consumed. 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={13:0}, malloc(37U)={3:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={13:0}] [L540] EXPR data.str.p2 VAL [data={13:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 29 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 5 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces [2022-11-21 13:51:28,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57333aae-1067-4463-8544-9bd90f2c1d21/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample