./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- 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-2329fc7 [2022-12-14 08:02:30,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:02:30,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:02:30,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:02:30,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:02:30,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:02:30,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:02:30,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:02:30,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:02:30,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:02:30,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:02:30,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:02:30,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:02:30,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:02:30,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:02:30,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:02:30,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:02:30,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:02:30,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:02:30,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:02:30,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:02:30,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:02:30,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:02:30,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:02:30,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:02:30,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:02:30,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:02:30,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:02:30,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:02:30,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:02:30,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:02:30,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:02:30,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:02:30,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:02:30,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:02:30,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:02:30,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:02:30,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:02:30,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:02:30,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:02:30,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:02:30,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 08:02:30,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:02:30,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:02:30,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:02:30,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:02:30,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:02:30,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:02:30,229 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:02:30,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:02:30,230 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:02:30,231 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:02:30,231 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:02:30,231 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:02:30,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:02:30,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:02:30,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:02:30,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:02:30,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:02:30,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:02:30,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:02:30,234 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:02:30,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:02:30,234 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:02:30,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:02:30,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:02:30,234 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_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2022-12-14 08:02:30,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:02:30,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:02:30,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:02:30,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:02:30,452 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:02:30,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety/test-0158-2.i [2022-12-14 08:02:32,897 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:02:33,100 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:02:33,101 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/sv-benchmarks/c/memsafety/test-0158-2.i [2022-12-14 08:02:33,111 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/77481101e/10436f0c11dc43f8becc0ba7e56d66e9/FLAG510db938e [2022-12-14 08:02:33,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/77481101e/10436f0c11dc43f8becc0ba7e56d66e9 [2022-12-14 08:02:33,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:02:33,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:02:33,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:02:33,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:02:33,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:02:33,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e60b839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33, skipping insertion in model container [2022-12-14 08:02:33,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:02:33,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:02:33,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:02:33,704 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:02:33,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:02:33,750 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:02:33,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33 WrapperNode [2022-12-14 08:02:33,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:02:33,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:02:33,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:02:33,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:02:33,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,777 INFO L138 Inliner]: procedures = 123, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-12-14 08:02:33,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:02:33,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:02:33,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:02:33,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:02:33,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:02:33,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:02:33,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:02:33,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:02:33,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (1/1) ... [2022-12-14 08:02:33,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:02:33,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:02:33,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:02:33,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:02:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:02:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:02:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:02:33,930 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:02:33,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:02:34,010 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:02:34,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:02:34,033 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:02:34,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:34 BoogieIcfgContainer [2022-12-14 08:02:34,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:02:34,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:02:34,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:02:34,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:02:34,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:02:33" (1/3) ... [2022-12-14 08:02:34,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a048565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:02:34, skipping insertion in model container [2022-12-14 08:02:34,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:33" (2/3) ... [2022-12-14 08:02:34,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a048565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:02:34, skipping insertion in model container [2022-12-14 08:02:34,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:34" (3/3) ... [2022-12-14 08:02:34,044 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2022-12-14 08:02:34,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:02:34,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 08:02:34,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:02:34,096 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;@36676544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:02:34,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 08:02:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 5 states have (on average 2.4) internal successors, (12), 12 states have internal predecessors, (12), 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) [2022-12-14 08:02:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:02:34,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:34,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:02:34,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:34,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1554, now seen corresponding path program 1 times [2022-12-14 08:02:34,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:02:34,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693441426] [2022-12-14 08:02:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:34,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:02:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:02:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:02:34,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:02:34,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693441426] [2022-12-14 08:02:34,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693441426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:02:34,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:02:34,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:02:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380622508] [2022-12-14 08:02:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:02:34,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:02:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:02:34,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:02:34,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:34,343 INFO L87 Difference]: Start difference. First operand has 13 states, 5 states have (on average 2.4) internal successors, (12), 12 states have internal predecessors, (12), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:02:34,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:02:34,375 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-12-14 08:02:34,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:02:34,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 08:02:34,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:02:34,383 INFO L225 Difference]: With dead ends: 10 [2022-12-14 08:02:34,383 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 08:02:34,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:34,387 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:02:34,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:02:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 08:02:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 08:02:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 5 states have (on average 1.6) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-12-14 08:02:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-14 08:02:34,408 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 2 [2022-12-14 08:02:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:02:34,408 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-14 08:02:34,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:02:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-14 08:02:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:02:34,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:34,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:02:34,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:02:34,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:34,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:34,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1555, now seen corresponding path program 1 times [2022-12-14 08:02:34,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:02:34,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991449198] [2022-12-14 08:02:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:34,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:02:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:02:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:02:34,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:02:34,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991449198] [2022-12-14 08:02:34,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991449198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:02:34,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:02:34,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:02:34,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479039789] [2022-12-14 08:02:34,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:02:34,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:02:34,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:02:34,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:02:34,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:34,508 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:02:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:02:34,523 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2022-12-14 08:02:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:02:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 08:02:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:02:34,524 INFO L225 Difference]: With dead ends: 6 [2022-12-14 08:02:34,524 INFO L226 Difference]: Without dead ends: 6 [2022-12-14 08:02:34,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:34,526 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:02:34,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:02:34,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-12-14 08:02:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-12-14 08:02:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:02:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2022-12-14 08:02:34,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2022-12-14 08:02:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:02:34,529 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2022-12-14 08:02:34,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:02:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-12-14 08:02:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:02:34,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:34,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:02:34,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:02:34,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash 46808961, now seen corresponding path program 1 times [2022-12-14 08:02:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:02:34,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388764940] [2022-12-14 08:02:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:34,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:02:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:02:34,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:02:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:02:34,588 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:02:34,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:02:34,589 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-14 08:02:34,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-14 08:02:34,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-14 08:02:34,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-14 08:02:34,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-14 08:02:34,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2022-12-14 08:02:34,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2022-12-14 08:02:34,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:02:34,596 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:02:34,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:02:34,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:02:34 BoogieIcfgContainer [2022-12-14 08:02:34,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:02:34,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:02:34,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:02:34,613 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:02:34,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:34" (3/4) ... [2022-12-14 08:02:34,616 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:02:34,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:02:34,617 INFO L158 Benchmark]: Toolchain (without parser) took 1130.27ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 125.7MB in the end (delta: 5.8MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-14 08:02:34,617 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:34,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.26ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 114.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 08:02:34,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.57ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 113.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:02:34,618 INFO L158 Benchmark]: Boogie Preprocessor took 15.49ms. Allocated memory is still 167.8MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:02:34,619 INFO L158 Benchmark]: RCFGBuilder took 240.40ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 100.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:02:34,619 INFO L158 Benchmark]: TraceAbstraction took 574.41ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 125.7MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:34,619 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 167.8MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:34,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.26ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 114.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.57ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 113.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.49ms. Allocated memory is still 167.8MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 240.40ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 100.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 574.41ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 125.7MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 167.8MB. Free memory is still 125.7MB. 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data VAL [data={3:0}] [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-12-14 08:02:34,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- 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-2329fc7 [2022-12-14 08:02:36,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:02:36,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:02:36,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:02:36,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:02:36,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:02:36,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:02:36,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:02:36,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:02:36,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:02:36,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:02:36,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:02:36,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:02:36,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:02:36,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:02:36,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:02:36,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:02:36,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:02:36,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:02:36,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:02:36,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:02:36,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:02:36,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:02:36,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:02:36,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:02:36,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:02:36,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:02:36,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:02:36,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:02:36,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:02:36,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:02:36,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:02:36,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:02:36,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:02:36,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:02:36,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:02:36,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:02:36,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:02:36,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:02:36,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:02:36,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:02:36,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 08:02:36,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:02:36,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:02:36,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:02:36,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:02:36,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:02:36,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:02:36,431 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:02:36,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:02:36,431 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:02:36,431 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:02:36,431 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:02:36,431 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:02:36,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:02:36,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:02:36,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:02:36,433 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:02:36,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:02:36,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:02:36,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:02:36,435 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:02:36,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:02:36,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:02:36,436 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_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2022-12-14 08:02:36,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:02:36,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:02:36,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:02:36,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:02:36,672 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:02:36,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety/test-0158-2.i [2022-12-14 08:02:39,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:02:39,391 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:02:39,392 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/sv-benchmarks/c/memsafety/test-0158-2.i [2022-12-14 08:02:39,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/ee65799cd/2bad47aa001c4a779edef6e17a795df7/FLAG4256e71b1 [2022-12-14 08:02:39,414 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/data/ee65799cd/2bad47aa001c4a779edef6e17a795df7 [2022-12-14 08:02:39,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:02:39,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:02:39,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:02:39,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:02:39,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:02:39,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c717e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39, skipping insertion in model container [2022-12-14 08:02:39,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:02:39,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:02:39,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:02:39,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:02:39,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:02:39,753 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:02:39,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39 WrapperNode [2022-12-14 08:02:39,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:02:39,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:02:39,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:02:39,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:02:39,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,788 INFO L138 Inliner]: procedures = 124, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-14 08:02:39,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:02:39,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:02:39,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:02:39,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:02:39,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:02:39,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:02:39,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:02:39,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:02:39,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (1/1) ... [2022-12-14 08:02:39,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:02:39,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:02:39,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:02:39,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:02:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:02:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:02:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:02:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:02:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-14 08:02:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:02:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:02:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:02:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:02:39,949 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:02:39,951 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:02:40,088 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:02:40,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:02:40,094 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:02:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:40 BoogieIcfgContainer [2022-12-14 08:02:40,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:02:40,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:02:40,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:02:40,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:02:40,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:02:39" (1/3) ... [2022-12-14 08:02:40,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc0833b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:02:40, skipping insertion in model container [2022-12-14 08:02:40,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:39" (2/3) ... [2022-12-14 08:02:40,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc0833b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:02:40, skipping insertion in model container [2022-12-14 08:02:40,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:40" (3/3) ... [2022-12-14 08:02:40,105 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2022-12-14 08:02:40,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:02:40,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 08:02:40,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:02:40,180 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;@1f32097b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:02:40,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 08:02:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) [2022-12-14 08:02:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:02:40,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:40,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:02:40,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-14 08:02:40,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:02:40,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614042989] [2022-12-14 08:02:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:40,209 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 [2022-12-14 08:02:40,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:02:40,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:02:40,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:02:40,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:02:40,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:02:40,362 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 08:02:40,363 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 [2022-12-14 08:02:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:02:40,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:02:40,386 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:02:40,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614042989] [2022-12-14 08:02:40,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614042989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:02:40,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:02:40,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:02:40,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445390281] [2022-12-14 08:02:40,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:02:40,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:02:40,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:02:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:02:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:40,416 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) 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) [2022-12-14 08:02:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:02:40,468 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-12-14 08:02:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:02:40,470 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 [2022-12-14 08:02:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:02:40,475 INFO L225 Difference]: With dead ends: 14 [2022-12-14 08:02:40,475 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 08:02:40,476 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 [2022-12-14 08:02:40,478 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:02:40,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:02:40,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 08:02:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 08:02:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2022-12-14 08:02:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-12-14 08:02:40,500 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2022-12-14 08:02:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:02:40,500 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-12-14 08:02:40,500 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) [2022-12-14 08:02:40,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-12-14 08:02:40,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:02:40,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:40,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:02:40,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:40,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:40,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-14 08:02:40,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:02:40,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36831310] [2022-12-14 08:02:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:40,706 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 [2022-12-14 08:02:40,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:02:40,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:02:40,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:02:40,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 08:02:40,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:02:40,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:02:40,883 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 [2022-12-14 08:02:40,891 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 [2022-12-14 08:02:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:02:40,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:02:40,907 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:02:40,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36831310] [2022-12-14 08:02:40,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36831310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:02:40,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:02:40,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:02:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902146226] [2022-12-14 08:02:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:02:40,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:02:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:02:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:02:40,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:02:40,911 INFO L87 Difference]: Start difference. First operand 12 states and 11 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) [2022-12-14 08:02:40,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:02:40,943 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-12-14 08:02:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:02:40,948 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 [2022-12-14 08:02:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:02:40,948 INFO L225 Difference]: With dead ends: 9 [2022-12-14 08:02:40,948 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 08:02:40,948 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 [2022-12-14 08:02:40,949 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:02:40,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:02:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 08:02:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 08:02:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-12-14 08:02:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-14 08:02:40,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2022-12-14 08:02:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:02:40,952 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-14 08:02:40,952 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) [2022-12-14 08:02:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-14 08:02:40,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:02:40,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:02:40,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:02:40,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:41,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:41,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-12-14 08:02:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:02:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2022-12-14 08:02:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:02:41,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922707430] [2022-12-14 08:02:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:02:41,161 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 [2022-12-14 08:02:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:02:41,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:02:41,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:02:41,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:02:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:02:41,422 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 08:02:41,422 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:02:41,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-14 08:02:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-14 08:02:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-14 08:02:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-14 08:02:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-14 08:02:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2022-12-14 08:02:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2022-12-14 08:02:41,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:02:41,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:02:41,636 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:02:41,646 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:02:41,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:02:41 BoogieIcfgContainer [2022-12-14 08:02:41,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:02:41,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:02:41,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:02:41,700 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:02:41,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:40" (3/4) ... [2022-12-14 08:02:41,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:02:41,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:02:41,712 INFO L158 Benchmark]: Toolchain (without parser) took 2293.16ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 45.2MB in the end (delta: 7.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-14 08:02:41,713 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:41,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.59ms. Allocated memory is still 75.5MB. Free memory was 53.0MB in the beginning and 54.7MB in the end (delta: -1.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-12-14 08:02:41,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.32ms. Allocated memory is still 75.5MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:02:41,717 INFO L158 Benchmark]: Boogie Preprocessor took 16.53ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:41,718 INFO L158 Benchmark]: RCFGBuilder took 290.20ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 39.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:02:41,719 INFO L158 Benchmark]: TraceAbstraction took 1599.13ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 45.6MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:41,720 INFO L158 Benchmark]: Witness Printer took 10.84ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 45.2MB in the end (delta: 382.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:02:41,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.59ms. Allocated memory is still 75.5MB. Free memory was 53.0MB in the beginning and 54.7MB in the end (delta: -1.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.32ms. Allocated memory is still 75.5MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.53ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.20ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 39.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1599.13ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 45.6MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.84ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 45.2MB in the end (delta: 382.6kB). 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={13:0}, malloc(37U)={3:0}] [L534] data.str.p2 = &data VAL [data={13:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={13:0}] [L536] return 0; [L536] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 10 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 2 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-12-14 08:02:41,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b79b622-85a7-4699-bb07-5df29807dfd9/bin/utaipan-gh47qXpMRh/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