./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 ca8443f02e84c43442a8563176ea0a68cc82ac31 ........................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 ca8443f02e84c43442a8563176ea0a68cc82ac31 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:25:18,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:25:18,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:25:18,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:25:18,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:25:18,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:25:18,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:25:18,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:25:18,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:25:18,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:25:18,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:25:18,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:25:18,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:25:18,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:25:18,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:25:18,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:25:18,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:25:18,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:25:18,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:25:18,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:25:18,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:25:18,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:25:18,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:25:18,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:25:18,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:25:18,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:25:18,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:25:18,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:25:18,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:25:18,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:25:18,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:25:18,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:25:18,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:25:18,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:25:18,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:25:18,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:25:18,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:25:18,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:25:18,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:25:18,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:25:18,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:25:18,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 10:25:18,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:25:18,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:25:18,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:25:18,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:25:18,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:25:18,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:25:18,121 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:25:18,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:25:18,121 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:25:18,121 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:25:18,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:25:18,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:25:18,122 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:25:18,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:25:18,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:25:18,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:25:18,124 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 -> ca8443f02e84c43442a8563176ea0a68cc82ac31 [2019-12-07 10:25:18,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:25:18,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:25:18,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:25:18,233 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:25:18,233 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:25:18,234 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-12-07 10:25:18,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/f81afd77d/93ed2e61815a46d98a035a112cee0d30/FLAG847a86b5d [2019-12-07 10:25:18,723 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:25:18,724 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-12-07 10:25:18,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/f81afd77d/93ed2e61815a46d98a035a112cee0d30/FLAG847a86b5d [2019-12-07 10:25:18,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/f81afd77d/93ed2e61815a46d98a035a112cee0d30 [2019-12-07 10:25:18,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:25:18,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:25:18,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:25:18,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:25:18,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:25:18,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:25:18" (1/1) ... [2019-12-07 10:25:18,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d34426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:18, skipping insertion in model container [2019-12-07 10:25:18,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:25:18" (1/1) ... [2019-12-07 10:25:18,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:25:18,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:25:19,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:25:19,067 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 10:25:19,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36eeb2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:19, skipping insertion in model container [2019-12-07 10:25:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:25:19,068 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:25:19,070 INFO L168 Benchmark]: Toolchain (without parser) took 321.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:19,070 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:25:19,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:19,072 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 10:25:20,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:25:20,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:25:20,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:25:20,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:25:20,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:25:20,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:25:20,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:25:20,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:25:20,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:25:20,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:25:20,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:25:20,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:25:20,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:25:20,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:25:20,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:25:20,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:25:20,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:25:20,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:25:20,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:25:20,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:25:20,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:25:20,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:25:20,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:25:20,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:25:20,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:25:20,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:25:20,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:25:20,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:25:20,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:25:20,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:25:20,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:25:20,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:25:20,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:25:20,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:25:20,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:25:20,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:25:20,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:25:20,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:25:20,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:25:20,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:25:20,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 10:25:20,269 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:25:20,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:25:20,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:25:20,270 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:25:20,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:25:20,270 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:25:20,270 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:25:20,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:25:20,270 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:25:20,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:25:20,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:25:20,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:25:20,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:25:20,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:25:20,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:25:20,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:25:20,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:25:20,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:25:20,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:25:20,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:25:20,275 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 -> ca8443f02e84c43442a8563176ea0a68cc82ac31 [2019-12-07 10:25:20,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:25:20,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:25:20,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:25:20,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:25:20,450 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:25:20,451 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-12-07 10:25:20,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/33519fc61/61c18600c51b40cd865ba73141313e41/FLAGffe950f29 [2019-12-07 10:25:20,944 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:25:20,945 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-12-07 10:25:20,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/33519fc61/61c18600c51b40cd865ba73141313e41/FLAGffe950f29 [2019-12-07 10:25:21,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/data/33519fc61/61c18600c51b40cd865ba73141313e41 [2019-12-07 10:25:21,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:25:21,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:25:21,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:25:21,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:25:21,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:25:21,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea342d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21, skipping insertion in model container [2019-12-07 10:25:21,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:25:21,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:25:21,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:25:21,569 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:25:21,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:25:21,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:25:21,622 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:25:21,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:25:21,716 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:25:21,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21 WrapperNode [2019-12-07 10:25:21,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:25:21,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:25:21,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:25:21,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:25:21,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:25:21,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:25:21,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:25:21,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:25:21,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... [2019-12-07 10:25:21,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:25:21,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:25:21,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:25:21,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:25:21,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 [2019-12-07 10:25:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:25:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:25:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:25:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 10:25:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:25:21,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:25:21,959 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:25:21,959 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 10:25:21,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:25:21 BoogieIcfgContainer [2019-12-07 10:25:21,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:25:21,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:25:21,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:25:21,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:25:21,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:25:21" (1/3) ... [2019-12-07 10:25:21,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bbaaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:25:21, skipping insertion in model container [2019-12-07 10:25:21,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:25:21" (2/3) ... [2019-12-07 10:25:21,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bbaaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:25:21, skipping insertion in model container [2019-12-07 10:25:21,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:25:21" (3/3) ... [2019-12-07 10:25:21,966 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test1-2.i [2019-12-07 10:25:21,972 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:25:21,976 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-12-07 10:25:21,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-07 10:25:21,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:25:21,996 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 10:25:21,996 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:25:21,996 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:25:21,996 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:25:21,996 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:25:21,996 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:25:21,996 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:25:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 10:25:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:25:22,010 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:25:22,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:25:22,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 10:25:22,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:25:22,015 INFO L82 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2019-12-07 10:25:22,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:25:22,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397632501] [2019-12-07 10:25:22,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 [2019-12-07 10:25:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:25:22,071 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:25:22,074 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:25:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,101 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:25:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397632501] [2019-12-07 10:25:22,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:25:22,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:25:22,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327981144] [2019-12-07 10:25:22,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:25:22,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:25:22,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:25:22,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:25:22,121 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2019-12-07 10:25:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:25:22,150 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-12-07 10:25:22,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:25:22,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 10:25:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:25:22,157 INFO L225 Difference]: With dead ends: 18 [2019-12-07 10:25:22,157 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 10:25:22,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:25:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 10:25:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 10:25:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 10:25:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-12-07 10:25:22,180 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2019-12-07 10:25:22,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:25:22,180 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-12-07 10:25:22,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:25:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-12-07 10:25:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 10:25:22,181 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:25:22,181 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:25:22,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:25:22,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 10:25:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:25:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2019-12-07 10:25:22,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:25:22,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907719098] [2019-12-07 10:25:22,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 [2019-12-07 10:25:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:25:22,446 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:25:22,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:25:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,477 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:25:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907719098] [2019-12-07 10:25:22,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:25:22,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2019-12-07 10:25:22,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853733957] [2019-12-07 10:25:22,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 10:25:22,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:25:22,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:25:22,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:25:22,498 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-12-07 10:25:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:25:22,594 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-12-07 10:25:22,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:25:22,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2019-12-07 10:25:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:25:22,595 INFO L225 Difference]: With dead ends: 25 [2019-12-07 10:25:22,595 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 10:25:22,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-07 10:25:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 10:25:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 14. [2019-12-07 10:25:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 10:25:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-12-07 10:25:22,598 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2019-12-07 10:25:22,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:25:22,598 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-12-07 10:25:22,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 10:25:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-12-07 10:25:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:25:22,599 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:25:22,599 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:25:22,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:25:22,800 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 10:25:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:25:22,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965349, now seen corresponding path program 1 times [2019-12-07 10:25:22,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:25:22,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902253054] [2019-12-07 10:25:22,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/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 [2019-12-07 10:25:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:25:22,859 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:25:22,860 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:25:22,885 INFO L377 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 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 10:25:22,886 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:25:22,889 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:25:22,889 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:25:22,889 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 10:25:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,897 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:25:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:22,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902253054] [2019-12-07 10:25:22,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:25:22,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:25:22,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946255791] [2019-12-07 10:25:22,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:25:22,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:25:22,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:25:22,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:25:22,902 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2019-12-07 10:25:22,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:25:22,935 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-12-07 10:25:22,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:25:22,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:25:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:25:22,937 INFO L225 Difference]: With dead ends: 18 [2019-12-07 10:25:22,937 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 10:25:22,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:25:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 10:25:22,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 10:25:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 10:25:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-12-07 10:25:22,940 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2019-12-07 10:25:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:25:22,941 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-12-07 10:25:22,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:25:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-12-07 10:25:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:25:22,941 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:25:22,941 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:25:23,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:25:23,142 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 10:25:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:25:23,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812391, now seen corresponding path program 1 times [2019-12-07 10:25:23,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:25:23,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045894183] [2019-12-07 10:25:23,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 10:25:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:25:23,169 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:25:23,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:25:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:23,179 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:25:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:25:23,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045894183] [2019-12-07 10:25:23,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:25:23,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:25:23,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169952750] [2019-12-07 10:25:23,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:25:23,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:25:23,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:25:23,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:25:23,183 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2019-12-07 10:25:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:25:23,212 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-12-07 10:25:23,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:25:23,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:25:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:25:23,213 INFO L225 Difference]: With dead ends: 22 [2019-12-07 10:25:23,213 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 10:25:23,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:25:23,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 10:25:23,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-12-07 10:25:23,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:25:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-07 10:25:23,215 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2019-12-07 10:25:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:25:23,216 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-07 10:25:23,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:25:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-07 10:25:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 10:25:23,216 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:25:23,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:25:23,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:25:23,417 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 10:25:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:25:23,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1267787124, now seen corresponding path program 1 times [2019-12-07 10:25:23,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:25:23,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132769693] [2019-12-07 10:25:23,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 10:25:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:25:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:25:23,483 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:25:23,483 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:25:23,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:25:23,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:25:23 BoogieIcfgContainer [2019-12-07 10:25:23,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:25:23,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:25:23,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:25:23,703 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:25:23,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:25:21" (3/4) ... [2019-12-07 10:25:23,705 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:25:23,736 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9df7d29-3957-45fd-8080-6bc75a99a8a8/bin/utaipan/witness.graphml [2019-12-07 10:25:23,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:25:23,738 INFO L168 Benchmark]: Toolchain (without parser) took 2462.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 929.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 136.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:23,738 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:25:23,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:23,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:23,739 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:25:23,740 INFO L168 Benchmark]: RCFGBuilder took 190.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:23,740 INFO L168 Benchmark]: TraceAbstraction took 1741.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 929.8 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:25:23,741 INFO L168 Benchmark]: Witness Printer took 33.90 ms. Allocated memory is still 1.1 GB. Free memory is still 929.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:25:23,743 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 440.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 190.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1741.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 929.8 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.90 ms. Allocated memory is still 1.1 GB. Free memory is still 929.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 760]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [ldv_global_msg_list={3:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) VAL [ldv_global_msg_list={3:0}] [L759] free(p) VAL [ldv_global_msg_list={3:0}] [L759] free(p) [L760] free(p) VAL [ldv_global_msg_list={3:0}] [L760] free(p) VAL [ldv_global_msg_list={3:0}] [L760] free(p) VAL [ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 7 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 78 SDslu, 34 SDs, 0 SdLazy, 74 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 797 SizeOfPredicates, 8 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...