./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 12:33:02,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:33:02,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:33:02,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:33:02,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:33:02,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:33:02,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:33:02,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:33:02,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:33:02,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:33:02,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:33:02,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:33:02,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:33:02,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:33:02,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:33:02,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:33:02,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:33:02,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:33:02,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:33:02,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:33:02,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:33:02,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:33:02,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:33:02,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:33:02,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:33:02,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:33:02,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:33:02,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:33:02,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:33:02,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:33:02,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:33:02,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:33:02,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:33:02,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:33:02,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:33:02,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:33:02,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:33:02,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:33:02,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:33:02,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:33:02,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:33:02,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:33:02,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:33:02,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:33:02,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:33:02,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:33:02,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:33:02,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:33:02,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:33:02,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:33:02,376 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:33:02,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:33:02,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:33:02,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:33:02,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:33:02,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:33:02,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:33:02,379 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:33:02,379 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:33:02,380 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:33:02,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:33:02,380 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:33:02,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:33:02,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:33:02,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:33:02,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:33:02,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:33:02,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:02,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:33:02,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:33:02,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:33:02,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:33:02,384 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_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2022-11-20 12:33:02,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:33:02,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:33:02,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:33:02,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:33:02,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:33:02,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-20 12:33:06,565 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:33:06,881 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:33:06,882 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-20 12:33:06,897 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/cac6a82bc/c76f62c7acb74855ae83015b9a1c9c17/FLAGeadfd998e [2022-11-20 12:33:06,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/cac6a82bc/c76f62c7acb74855ae83015b9a1c9c17 [2022-11-20 12:33:06,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:33:06,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:33:06,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:06,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:33:07,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:33:07,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:06" (1/1) ... [2022-11-20 12:33:07,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f81504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07, skipping insertion in model container [2022-11-20 12:33:07,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:06" (1/1) ... [2022-11-20 12:33:07,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:33:07,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:33:07,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:07,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:33:07,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:07,591 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:33:07,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07 WrapperNode [2022-11-20 12:33:07,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:07,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:07,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:33:07,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:33:07,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,638 INFO L138 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-20 12:33:07,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:07,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:33:07,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:33:07,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:33:07,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,703 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:33:07,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:33:07,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:33:07,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:33:07,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (1/1) ... [2022-11-20 12:33:07,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:07,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:33:07,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:33:07,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:33:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:33:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:33:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:33:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:33:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:33:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:33:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:33:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:33:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:33:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:33:08,021 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:33:08,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:33:08,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:33:08,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:33:08,312 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:33:08,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:08 BoogieIcfgContainer [2022-11-20 12:33:08,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:33:08,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:33:08,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:33:08,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:33:08,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:33:06" (1/3) ... [2022-11-20 12:33:08,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3bd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:08, skipping insertion in model container [2022-11-20 12:33:08,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:07" (2/3) ... [2022-11-20 12:33:08,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a3bd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:08, skipping insertion in model container [2022-11-20 12:33:08,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:08" (3/3) ... [2022-11-20 12:33:08,346 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2022-11-20 12:33:08,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:33:08,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:33:08,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:33:08,480 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;@729492c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:33:08,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 12:33:08,490 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) [2022-11-20 12:33:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 12:33:08,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:08,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 12:33:08,498 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)] === [2022-11-20 12:33:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:08,504 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-11-20 12:33:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:08,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988952412] [2022-11-20 12:33:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:08,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988952412] [2022-11-20 12:33:08,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988952412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:08,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:08,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934408853] [2022-11-20 12:33:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:08,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:08,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:08,919 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) [2022-11-20 12:33:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:08,986 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-20 12:33:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:08,989 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 [2022-11-20 12:33:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:08,999 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:33:08,999 INFO L226 Difference]: Without dead ends: 18 [2022-11-20 12:33:09,001 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 [2022-11-20 12:33:09,006 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 [2022-11-20 12:33:09,007 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] [2022-11-20 12:33:09,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-20 12:33:09,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 12:33:09,056 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) [2022-11-20 12:33:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-20 12:33:09,059 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2022-11-20 12:33:09,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:09,059 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-20 12:33:09,060 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) [2022-11-20 12:33:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-20 12:33:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 12:33:09,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:09,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 12:33:09,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:33:09,061 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)] === [2022-11-20 12:33:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:09,062 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-20 12:33:09,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:09,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293964786] [2022-11-20 12:33:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:09,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:09,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293964786] [2022-11-20 12:33:09,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293964786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:09,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:09,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222101301] [2022-11-20 12:33:09,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:09,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:09,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:09,380 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) [2022-11-20 12:33:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:09,435 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-20 12:33:09,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:09,436 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 [2022-11-20 12:33:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:09,438 INFO L225 Difference]: With dead ends: 13 [2022-11-20 12:33:09,438 INFO L226 Difference]: Without dead ends: 13 [2022-11-20 12:33:09,442 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 [2022-11-20 12:33:09,443 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 [2022-11-20 12:33:09,444 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] [2022-11-20 12:33:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-20 12:33:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-20 12:33:09,447 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) [2022-11-20 12:33:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-20 12:33:09,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2022-11-20 12:33:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:09,449 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-20 12:33:09,449 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) [2022-11-20 12:33:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 12:33:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:33:09,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:09,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:09,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:33:09,451 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)] === [2022-11-20 12:33:09,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2022-11-20 12:33:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:09,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613174976] [2022-11-20 12:33:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:09,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:09,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:09,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613174976] [2022-11-20 12:33:09,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613174976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:09,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:09,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:33:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876146287] [2022-11-20 12:33:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:33:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:33:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:33:09,641 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) [2022-11-20 12:33:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:09,700 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-20 12:33:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:33:09,701 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 [2022-11-20 12:33:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:09,702 INFO L225 Difference]: With dead ends: 17 [2022-11-20 12:33:09,703 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 12:33:09,703 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 [2022-11-20 12:33:09,705 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 [2022-11-20 12:33:09,705 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] [2022-11-20 12:33:09,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 12:33:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 12:33:09,709 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) [2022-11-20 12:33:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-20 12:33:09,710 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-11-20 12:33:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:09,711 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-20 12:33:09,711 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) [2022-11-20 12:33:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-20 12:33:09,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:33:09,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:09,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:09,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:33:09,713 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)] === [2022-11-20 12:33:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2022-11-20 12:33:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:09,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226649080] [2022-11-20 12:33:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:33:09,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:33:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:33:09,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:33:09,780 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:33:09,782 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2022-11-20 12:33:09,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-20 12:33:09,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-20 12:33:09,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-20 12:33:09,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-20 12:33:09,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-20 12:33:09,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2022-11-20 12:33:09,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2022-11-20 12:33:09,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2022-11-20 12:33:09,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2022-11-20 12:33:09,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2022-11-20 12:33:09,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:33:09,794 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 12:33:09,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:33:09,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:33:09 BoogieIcfgContainer [2022-11-20 12:33:09,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:33:09,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:33:09,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:33:09,857 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:33:09,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:08" (3/4) ... [2022-11-20 12:33:09,862 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:33:09,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:33:09,863 INFO L158 Benchmark]: Toolchain (without parser) took 2872.08ms. Allocated memory is still 165.7MB. Free memory was 138.3MB in the beginning and 134.1MB in the end (delta: 4.2MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-11-20 12:33:09,864 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:09,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.22ms. Allocated memory is still 165.7MB. Free memory was 137.6MB in the beginning and 121.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:33:09,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.36ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 119.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:09,865 INFO L158 Benchmark]: Boogie Preprocessor took 74.26ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:09,866 INFO L158 Benchmark]: RCFGBuilder took 600.47ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 106.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:33:09,866 INFO L158 Benchmark]: TraceAbstraction took 1537.43ms. Allocated memory is still 165.7MB. Free memory was 105.9MB in the beginning and 134.1MB in the end (delta: -28.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:09,867 INFO L158 Benchmark]: Witness Printer took 6.58ms. Allocated memory is still 165.7MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:09,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.22ms. Allocated memory is still 165.7MB. Free memory was 137.6MB in the beginning and 121.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.36ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 119.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.26ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 600.47ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 106.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1537.43ms. Allocated memory is still 165.7MB. Free memory was 105.9MB in the beginning and 134.1MB in the end (delta: -28.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 6.58ms. Allocated memory is still 165.7MB. Free memory is still 134.1MB. 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, 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, 0.7s 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 [2022-11-20 12:33:09,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 12:33:12,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:33:13,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:33:13,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:33:13,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:33:13,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:33:13,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:33:13,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:33:13,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:33:13,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:33:13,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:33:13,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:33:13,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:33:13,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:33:13,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:33:13,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:33:13,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:33:13,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:33:13,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:33:13,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:33:13,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:33:13,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:33:13,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:33:13,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:33:13,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:33:13,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:33:13,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:33:13,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:33:13,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:33:13,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:33:13,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:33:13,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:33:13,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:33:13,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:33:13,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:33:13,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:33:13,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:33:13,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:33:13,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:33:13,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:33:13,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:33:13,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 12:33:13,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:33:13,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:33:13,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:33:13,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:33:13,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:33:13,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:33:13,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:33:13,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:33:13,131 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:33:13,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:33:13,132 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:33:13,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:33:13,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:33:13,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:33:13,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:33:13,134 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:33:13,134 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:33:13,135 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:33:13,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:33:13,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:33:13,136 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:33:13,136 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:33:13,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:33:13,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:33:13,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:33:13,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:33:13,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:33:13,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:13,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:33:13,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:33:13,139 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:33:13,139 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:33:13,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:33:13,140 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_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2022-11-20 12:33:13,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:33:13,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:33:13,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:33:13,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:33:13,607 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:33:13,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-20 12:33:17,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:33:17,986 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:33:17,987 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2022-11-20 12:33:18,010 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/66cef1953/65566470eb2943cfb59c0498fc601ca0/FLAG64b809592 [2022-11-20 12:33:18,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/data/66cef1953/65566470eb2943cfb59c0498fc601ca0 [2022-11-20 12:33:18,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:33:18,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:33:18,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:18,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:33:18,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:33:18,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b048c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18, skipping insertion in model container [2022-11-20 12:33:18,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:33:18,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:33:18,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:18,605 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:33:18,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:18,733 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:33:18,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18 WrapperNode [2022-11-20 12:33:18,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:18,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:18,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:33:18,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:33:18,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,820 INFO L138 Inliner]: procedures = 127, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-20 12:33:18,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:18,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:33:18,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:33:18,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:33:18,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:33:18,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:33:18,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:33:18,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:33:18,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (1/1) ... [2022-11-20 12:33:18,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:18,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:33:19,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:33:19,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:33:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:33:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:33:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:33:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:33:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:33:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:33:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:33:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:33:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:33:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:33:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:33:19,317 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:33:19,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:33:19,583 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:33:19,590 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:33:19,591 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:33:19,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:19 BoogieIcfgContainer [2022-11-20 12:33:19,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:33:19,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:33:19,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:33:19,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:33:19,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:33:18" (1/3) ... [2022-11-20 12:33:19,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1467b71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:19, skipping insertion in model container [2022-11-20 12:33:19,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:18" (2/3) ... [2022-11-20 12:33:19,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1467b71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:19, skipping insertion in model container [2022-11-20 12:33:19,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:19" (3/3) ... [2022-11-20 12:33:19,605 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2022-11-20 12:33:19,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:33:19,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:33:19,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:33:19,720 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;@34767dba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:33:19,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 12:33:19,727 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) [2022-11-20 12:33:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 12:33:19,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:19,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 12:33:19,740 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)] === [2022-11-20 12:33:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-11-20 12:33:19,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:33:19,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811320350] [2022-11-20 12:33:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:19,773 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 [2022-11-20 12:33:19,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:33:19,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:33:19,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:19,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:33:19,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:33:20,148 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 12:33:20,150 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 [2022-11-20 12:33:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:20,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:33:20,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:33:20,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811320350] [2022-11-20 12:33:20,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811320350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:20,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:20,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:20,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616595153] [2022-11-20 12:33:20,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:20,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:20,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:33:20,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:20,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:20,261 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) [2022-11-20 12:33:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:20,385 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-20 12:33:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:20,389 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 [2022-11-20 12:33:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:20,399 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:33:20,399 INFO L226 Difference]: Without dead ends: 18 [2022-11-20 12:33:20,401 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 [2022-11-20 12:33:20,406 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 [2022-11-20 12:33:20,407 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] [2022-11-20 12:33:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-20 12:33:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 12:33:20,447 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) [2022-11-20 12:33:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-20 12:33:20,450 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2022-11-20 12:33:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:20,451 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-20 12:33:20,451 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) [2022-11-20 12:33:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-20 12:33:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 12:33:20,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:20,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 12:33:20,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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)] Forceful destruction successful, exit code 0 [2022-11-20 12:33:20,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:20,668 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)] === [2022-11-20 12:33:20,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-20 12:33:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:33:20,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215589714] [2022-11-20 12:33:20,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:20,670 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 [2022-11-20 12:33:20,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:33:20,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:33:20,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:20,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:33:20,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:33:20,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:33:20,817 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 [2022-11-20 12:33:20,832 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 [2022-11-20 12:33:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:20,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:33:20,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:33:20,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215589714] [2022-11-20 12:33:20,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215589714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:20,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:20,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:20,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118941205] [2022-11-20 12:33:20,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:20,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:20,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:33:20,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:20,866 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) [2022-11-20 12:33:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:20,945 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-20 12:33:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:20,946 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 [2022-11-20 12:33:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:20,946 INFO L225 Difference]: With dead ends: 13 [2022-11-20 12:33:20,946 INFO L226 Difference]: Without dead ends: 13 [2022-11-20 12:33:20,947 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 [2022-11-20 12:33:20,949 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 [2022-11-20 12:33:20,949 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] [2022-11-20 12:33:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-20 12:33:20,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-20 12:33:20,952 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) [2022-11-20 12:33:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-20 12:33:20,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2022-11-20 12:33:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:20,953 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-20 12:33:20,954 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) [2022-11-20 12:33:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 12:33:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:33:20,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:20,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:20,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 12:33:21,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:21,170 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)] === [2022-11-20 12:33:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2022-11-20 12:33:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:33:21,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061343217] [2022-11-20 12:33:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:21,172 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 [2022-11-20 12:33:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:33:21,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:33:21,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:21,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:33:21,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:33:21,343 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 [2022-11-20 12:33:21,393 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 [2022-11-20 12:33:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:21,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:33:21,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:33:21,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061343217] [2022-11-20 12:33:21,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061343217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:21,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:21,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:33:21,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519525798] [2022-11-20 12:33:21,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:21,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:33:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:33:21,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:33:21,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:33:21,422 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) [2022-11-20 12:33:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:21,621 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-20 12:33:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:33:21,622 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 [2022-11-20 12:33:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:21,623 INFO L225 Difference]: With dead ends: 17 [2022-11-20 12:33:21,623 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 12:33:21,623 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 [2022-11-20 12:33:21,625 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:21,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:33:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 12:33:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 12:33:21,630 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) [2022-11-20 12:33:21,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-20 12:33:21,631 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-11-20 12:33:21,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:21,632 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-20 12:33:21,632 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) [2022-11-20 12:33:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-20 12:33:21,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:33:21,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:21,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:21,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:21,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:21,852 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)] === [2022-11-20 12:33:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2022-11-20 12:33:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:33:21,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058046471] [2022-11-20 12:33:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:21,854 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 [2022-11-20 12:33:21,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:33:21,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:33:21,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:33:21,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:33:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:33:22,077 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 12:33:22,077 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:33:22,079 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2022-11-20 12:33:22,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-20 12:33:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-20 12:33:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-20 12:33:22,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-20 12:33:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-20 12:33:22,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2022-11-20 12:33:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2022-11-20 12:33:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2022-11-20 12:33:22,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2022-11-20 12:33:22,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2022-11-20 12:33:22,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 12:33:22,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:33:22,289 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 12:33:22,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:33:22,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:33:22 BoogieIcfgContainer [2022-11-20 12:33:22,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:33:22,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:33:22,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:33:22,314 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:33:22,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:19" (3/4) ... [2022-11-20 12:33:22,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:33:22,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:33:22,320 INFO L158 Benchmark]: Toolchain (without parser) took 4275.23ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 54.7MB in the beginning and 66.3MB in the end (delta: -11.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:22,320 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 77.6MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:22,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.38ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 37.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:33:22,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.74ms. Allocated memory is still 77.6MB. Free memory was 37.4MB in the beginning and 35.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:33:22,322 INFO L158 Benchmark]: Boogie Preprocessor took 89.91ms. Allocated memory is still 77.6MB. Free memory was 35.6MB in the beginning and 57.6MB in the end (delta: -22.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-20 12:33:22,322 INFO L158 Benchmark]: RCFGBuilder took 671.09ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 44.4MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:33:22,323 INFO L158 Benchmark]: TraceAbstraction took 2716.41ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 43.8MB in the beginning and 66.7MB in the end (delta: -22.9MB). Peak memory consumption was 252.8kB. Max. memory is 16.1GB. [2022-11-20 12:33:22,323 INFO L158 Benchmark]: Witness Printer took 5.77ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 66.3MB in the end (delta: 381.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:33:22,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 77.6MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.38ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 37.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.74ms. Allocated memory is still 77.6MB. Free memory was 37.4MB in the beginning and 35.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.91ms. Allocated memory is still 77.6MB. Free memory was 35.6MB in the beginning and 57.6MB in the end (delta: -22.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * RCFGBuilder took 671.09ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 44.4MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2716.41ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 43.8MB in the beginning and 66.7MB in the end (delta: -22.9MB). Peak memory consumption was 252.8kB. Max. memory is 16.1GB. * Witness Printer took 5.77ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 66.3MB in the end (delta: 381.2kB). 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: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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 [2022-11-20 12:33:22,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0121635-c2ff-44ce-923c-e46171f28d89/bin/uautomizer-ug76WZFUDN/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