./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan --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 c3baf3e1382b3477cfa26255004191fb506be280 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan --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 c3baf3e1382b3477cfa26255004191fb506be280 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:03:34,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:03:34,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:03:34,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:03:34,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:03:34,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:03:34,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:03:34,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:03:34,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:03:34,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:03:34,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:03:34,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:03:34,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:03:34,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:03:34,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:03:34,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:03:34,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:03:34,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:03:34,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:03:34,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:03:34,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:03:34,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:03:34,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:03:34,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:03:34,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:03:34,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:03:34,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:03:34,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:03:34,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:03:34,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:03:34,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:03:34,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:03:34,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:03:34,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:03:34,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:03:34,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:03:34,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:03:34,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:03:34,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:03:34,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:03:34,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:03:34,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 14:03:34,239 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:03:34,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:03:34,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:03:34,240 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:03:34,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:03:34,240 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:03:34,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:03:34,240 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:03:34,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:03:34,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:03:34,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:03:34,241 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:03:34,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:03:34,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:03:34,242 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:03:34,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 14:03:34,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 14:03:34,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 14:03:34,243 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:03:34,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:03:34,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:03:34,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:03:34,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-12-09 14:03:34,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:03:34,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:03:34,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:03:34,459 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:03:34,460 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:03:34,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/../../sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-09 14:03:34,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/e77719017/d9169cc0822b4a4b9012c33c9bff6f96/FLAGc3b801b4d [2020-12-09 14:03:34,917 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:03:34,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-09 14:03:34,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/e77719017/d9169cc0822b4a4b9012c33c9bff6f96/FLAGc3b801b4d [2020-12-09 14:03:34,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/e77719017/d9169cc0822b4a4b9012c33c9bff6f96 [2020-12-09 14:03:34,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:03:34,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:03:34,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:03:34,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:03:34,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:03:34,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:03:34" (1/1) ... [2020-12-09 14:03:34,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce21066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:34, skipping insertion in model container [2020-12-09 14:03:34,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:03:34" (1/1) ... [2020-12-09 14:03:34,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:03:34,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:03:35,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:03:35,154 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:03:35,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:03:35,229 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:03:35,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35 WrapperNode [2020-12-09 14:03:35,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:03:35,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:03:35,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:03:35,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:03:35,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:03:35,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:03:35,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:03:35,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:03:35,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... [2020-12-09 14:03:35,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:03:35,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:03:35,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:03:35,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:03:35,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:03:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:03:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:03:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:03:35,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:03:35,554 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 14:03:35,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:35 BoogieIcfgContainer [2020-12-09 14:03:35,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:03:35,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:03:35,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:03:35,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:03:35,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:03:34" (1/3) ... [2020-12-09 14:03:35,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:03:35, skipping insertion in model container [2020-12-09 14:03:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:35" (2/3) ... [2020-12-09 14:03:35,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:03:35, skipping insertion in model container [2020-12-09 14:03:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:35" (3/3) ... [2020-12-09 14:03:35,563 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-12-09 14:03:35,576 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:03:35,579 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 14:03:35,589 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 14:03:35,608 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:03:35,608 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 14:03:35,608 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:03:35,608 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:03:35,608 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:03:35,608 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:03:35,608 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:03:35,609 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:03:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-09 14:03:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 14:03:35,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:35,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 14:03:35,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:35,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:35,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1492, now seen corresponding path program 1 times [2020-12-09 14:03:35,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:03:35,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211353318] [2020-12-09 14:03:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:03:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:03:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:03:35,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211353318] [2020-12-09 14:03:35,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:03:35,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 14:03:35,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880886601] [2020-12-09 14:03:35,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:03:35,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:03:35,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:03:35,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:35,794 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-12-09 14:03:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:03:35,822 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-12-09 14:03:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:03:35,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 14:03:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:03:35,831 INFO L225 Difference]: With dead ends: 10 [2020-12-09 14:03:35,831 INFO L226 Difference]: Without dead ends: 9 [2020-12-09 14:03:35,832 INFO L677 BasicCegarLoop]: 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 [2020-12-09 14:03:35,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-09 14:03:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-09 14:03:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 14:03:35,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-12-09 14:03:35,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 2 [2020-12-09 14:03:35,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:03:35,859 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-12-09 14:03:35,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:03:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-12-09 14:03:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 14:03:35,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:35,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 14:03:35,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 14:03:35,860 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:35,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:35,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1493, now seen corresponding path program 1 times [2020-12-09 14:03:35,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:03:35,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471595583] [2020-12-09 14:03:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:03:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:03:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:03:35,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471595583] [2020-12-09 14:03:35,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:03:35,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 14:03:35,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755623934] [2020-12-09 14:03:35,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:03:35,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:03:35,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:03:35,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:35,901 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 3 states. [2020-12-09 14:03:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:03:35,910 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-12-09 14:03:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:03:35,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 14:03:35,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:03:35,911 INFO L225 Difference]: With dead ends: 6 [2020-12-09 14:03:35,911 INFO L226 Difference]: Without dead ends: 6 [2020-12-09 14:03:35,912 INFO L677 BasicCegarLoop]: 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 [2020-12-09 14:03:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-12-09 14:03:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-12-09 14:03:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-12-09 14:03:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-12-09 14:03:35,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2020-12-09 14:03:35,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:03:35,913 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-12-09 14:03:35,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:03:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-12-09 14:03:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 14:03:35,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:35,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 14:03:35,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 14:03:35,914 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:35,914 INFO L82 PathProgramCache]: Analyzing trace with hash 44424719, now seen corresponding path program 1 times [2020-12-09 14:03:35,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:03:35,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089838441] [2020-12-09 14:03:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:03:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:03:35,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:03:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:03:35,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:03:35,966 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 14:03:35,966 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:03:35,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 14:03:35,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:03:35 BoogieIcfgContainer [2020-12-09 14:03:35,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:03:35,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:03:35,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:03:35,979 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:03:35,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:35" (3/4) ... [2020-12-09 14:03:35,982 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 14:03:35,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:03:35,983 INFO L168 Benchmark]: Toolchain (without parser) took 1038.58 ms. Allocated memory is still 113.2 MB. Free memory was 73.2 MB in the beginning and 47.8 MB in the end (delta: 25.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,983 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 113.2 MB. Free memory is still 90.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:03:35,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.53 ms. Allocated memory is still 113.2 MB. Free memory was 73.0 MB in the beginning and 90.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.70 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,985 INFO L168 Benchmark]: Boogie Preprocessor took 15.81 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,985 INFO L168 Benchmark]: RCFGBuilder took 282.10 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 78.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,986 INFO L168 Benchmark]: TraceAbstraction took 420.85 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 47.8 MB in the end (delta: 30.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:35,986 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 113.2 MB. Free memory is still 47.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:03:35,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 113.2 MB. Free memory is still 90.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.53 ms. Allocated memory is still 113.2 MB. Free memory was 73.0 MB in the beginning and 90.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.70 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.81 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 282.10 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 78.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 420.85 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 47.8 MB in the end (delta: 30.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.01 ms. Allocated memory is still 113.2 MB. Free memory is still 47.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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, 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, 0.0s 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:03:37,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:03:37,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:03:37,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:03:37,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:03:37,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:03:37,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:03:37,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:03:37,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:03:37,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:03:37,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:03:37,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:03:37,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:03:37,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:03:37,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:03:37,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:03:37,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:03:37,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:03:37,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:03:37,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:03:37,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:03:37,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:03:37,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:03:37,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:03:37,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:03:37,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:03:37,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:03:37,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:03:37,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:03:37,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:03:37,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:03:37,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:03:37,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:03:37,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:03:37,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:03:37,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:03:37,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:03:37,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:03:37,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:03:37,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:03:37,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:03:37,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 14:03:37,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:03:37,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:03:37,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:03:37,713 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:03:37,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:03:37,714 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:03:37,714 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:03:37,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:03:37,714 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:03:37,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 14:03:37,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 14:03:37,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:03:37,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:03:37,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 14:03:37,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:03:37,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:03:37,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 14:03:37,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:03:37,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:03:37,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:03:37,719 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-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-12-09 14:03:37,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:03:37,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:03:37,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:03:37,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:03:37,954 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:03:37,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/../../sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-09 14:03:37,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/81372ca13/94f568bdbb7e44c0a638de5220ee55a9/FLAGf9e231c8f [2020-12-09 14:03:38,499 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:03:38,499 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-09 14:03:38,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/81372ca13/94f568bdbb7e44c0a638de5220ee55a9/FLAGf9e231c8f [2020-12-09 14:03:38,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/data/81372ca13/94f568bdbb7e44c0a638de5220ee55a9 [2020-12-09 14:03:38,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:03:38,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:03:38,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:03:38,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:03:38,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:03:38,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:03:38" (1/1) ... [2020-12-09 14:03:38,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17de2aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:38, skipping insertion in model container [2020-12-09 14:03:38,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:03:38" (1/1) ... [2020-12-09 14:03:38,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:03:39,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:03:39,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:03:39,211 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:03:39,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:03:39,285 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:03:39,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39 WrapperNode [2020-12-09 14:03:39,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:03:39,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:03:39,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:03:39,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:03:39,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:03:39,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:03:39,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:03:39,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:03:39,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... [2020-12-09 14:03:39,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:03:39,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:03:39,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:03:39,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:03:39,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:03:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 14:03:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:03:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:03:39,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:03:39,611 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 14:03:39,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:39 BoogieIcfgContainer [2020-12-09 14:03:39,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:03:39,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:03:39,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:03:39,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:03:39,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:03:38" (1/3) ... [2020-12-09 14:03:39,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148a54eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:03:39, skipping insertion in model container [2020-12-09 14:03:39,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:03:39" (2/3) ... [2020-12-09 14:03:39,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148a54eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:03:39, skipping insertion in model container [2020-12-09 14:03:39,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:39" (3/3) ... [2020-12-09 14:03:39,617 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-12-09 14:03:39,627 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:03:39,630 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 14:03:39,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 14:03:39,651 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:03:39,652 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 14:03:39,652 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:03:39,652 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:03:39,652 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:03:39,652 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:03:39,652 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:03:39,652 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:03:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 14:03:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 14:03:39,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:39,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 14:03:39,665 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:39,669 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-09 14:03:39,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:03:39,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781492910] [2020-12-09 14:03:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 14:03:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:03:39,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:03:39,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:03:39,797 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-09 14:03:39,797 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 11 [2020-12-09 14:03:39,802 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 14:03:39,807 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 14:03:39,812 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 14:03:39,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:13 [2020-12-09 14:03:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:03:39,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:03:39,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781492910] [2020-12-09 14:03:39,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:03:39,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:03:39,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879644109] [2020-12-09 14:03:39,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:03:39,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:03:39,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:03:39,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:39,842 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-12-09 14:03:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:03:39,894 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-09 14:03:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:03:39,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 14:03:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:03:39,900 INFO L225 Difference]: With dead ends: 13 [2020-12-09 14:03:39,900 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 14:03:39,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 14:03:39,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 14:03:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 14:03:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-12-09 14:03:39,920 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2020-12-09 14:03:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:03:39,921 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-12-09 14:03:39,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:03:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-09 14:03:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 14:03:39,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:39,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 14:03:40,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 14:03:40,123 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:40,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:40,127 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-09 14:03:40,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:03:40,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139137470] [2020-12-09 14:03:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 14:03:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:03:40,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 14:03:40,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:03:40,293 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_13|], 1=[|v_#valid_19|]} [2020-12-09 14:03:40,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 14:03:40,298 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2020-12-09 14:03:40,300 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 14:03:40,308 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 14:03:40,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 14:03:40,314 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2020-12-09 14:03:40,315 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 14:03:40,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 14:03:40,323 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 14:03:40,323 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-12-09 14:03:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:03:40,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:03:40,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139137470] [2020-12-09 14:03:40,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:03:40,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:03:40,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834949934] [2020-12-09 14:03:40,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:03:40,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:03:40,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:03:40,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:40,337 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2020-12-09 14:03:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:03:40,364 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-12-09 14:03:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:03:40,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 14:03:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:03:40,365 INFO L225 Difference]: With dead ends: 8 [2020-12-09 14:03:40,365 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 14:03:40,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:03:40,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 14:03:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 14:03:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 14:03:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-09 14:03:40,367 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2020-12-09 14:03:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:03:40,367 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-09 14:03:40,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:03:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-09 14:03:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 14:03:40,368 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:03:40,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:03:40,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 14:03:40,570 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 14:03:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:03:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2020-12-09 14:03:40,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:03:40,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666533159] [2020-12-09 14:03:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb78840a-bb4f-472e-8f0c-279232ca651b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 14:03:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:03:40,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:03:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:03:40,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:03:40,807 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 14:03:40,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:03:41,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 14:03:41,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:03:41 BoogieIcfgContainer [2020-12-09 14:03:41,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:03:41,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:03:41,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:03:41,061 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:03:41,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:03:39" (3/4) ... [2020-12-09 14:03:41,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 14:03:41,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:03:41,074 INFO L168 Benchmark]: Toolchain (without parser) took 2091.37 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.9 MB in the beginning and 65.3 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:03:41,076 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:03:41,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.16 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.6 MB in the beginning and 43.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:41,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.50 ms. Allocated memory is still 71.3 MB. Free memory was 43.5 MB in the beginning and 41.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:41,082 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 71.3 MB. Free memory was 41.8 MB in the beginning and 40.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:03:41,083 INFO L168 Benchmark]: RCFGBuilder took 276.15 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 41.6 MB in the end (delta: -956.8 kB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:41,086 INFO L168 Benchmark]: TraceAbstraction took 1445.48 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 41.3 MB in the beginning and 66.0 MB in the end (delta: -24.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:41,087 INFO L168 Benchmark]: Witness Printer took 10.48 ms. Allocated memory is still 86.0 MB. Free memory was 66.0 MB in the beginning and 65.3 MB in the end (delta: 645.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:03:41,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.16 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.6 MB in the beginning and 43.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.50 ms. Allocated memory is still 71.3 MB. Free memory was 43.5 MB in the beginning and 41.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 71.3 MB. Free memory was 41.8 MB in the beginning and 40.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 276.15 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 41.6 MB in the end (delta: -956.8 kB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1445.48 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 41.3 MB in the beginning and 66.0 MB in the end (delta: -24.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Witness Printer took 10.48 ms. Allocated memory is still 86.0 MB. Free memory was 66.0 MB in the beginning and 65.3 MB in the end (delta: 645.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 44 SizeOfPredicates, 2 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 6 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 Received shutdown request...