./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 06:02:33,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:02:33,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:02:33,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:02:33,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:02:33,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:02:33,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:02:33,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:02:33,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:02:33,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:02:33,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:02:33,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:02:33,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:02:33,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:02:33,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:02:33,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:02:33,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:02:33,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:02:33,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:02:34,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:02:34,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:02:34,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:02:34,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:02:34,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:02:34,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:02:34,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:02:34,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:02:34,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:02:34,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:02:34,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:02:34,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:02:34,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:02:34,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:02:34,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:02:34,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:02:34,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:02:34,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:02:34,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:02:34,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:02:34,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:02:34,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:02:34,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 06:02:34,105 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:02:34,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:02:34,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:02:34,111 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:02:34,111 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:02:34,112 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:02:34,112 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 06:02:34,112 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:02:34,112 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:02:34,113 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 06:02:34,113 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 06:02:34,113 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:02:34,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 06:02:34,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 06:02:34,114 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 06:02:34,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 06:02:34,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 06:02:34,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:02:34,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:02:34,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 06:02:34,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:02:34,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:02:34,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:02:34,117 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 06:02:34,117 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 06:02:34,117 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 06:02:34,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:02:34,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:02:34,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:02:34,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:02:34,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:02:34,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:02:34,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:34,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:02:34,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:02:34,120 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 06:02:34,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 06:02:34,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:02:34,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:02:34,120 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_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-10-29 06:02:34,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:02:34,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:02:34,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:02:34,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:02:34,527 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:02:34,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-29 06:02:34,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/f588b422a/d407eb0fba0b400d9d774ab4b37becc8/FLAG7eeb1b7bd [2021-10-29 06:02:35,219 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:02:35,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-29 06:02:35,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/f588b422a/d407eb0fba0b400d9d774ab4b37becc8/FLAG7eeb1b7bd [2021-10-29 06:02:35,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/f588b422a/d407eb0fba0b400d9d774ab4b37becc8 [2021-10-29 06:02:35,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:02:35,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:02:35,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:35,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:02:35,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:02:35,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:35" (1/1) ... [2021-10-29 06:02:35,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a006ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:35, skipping insertion in model container [2021-10-29 06:02:35,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:35" (1/1) ... [2021-10-29 06:02:35,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:02:35,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:36,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:36,045 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) [2021-10-29 06:02:36,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b5c25d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:36, skipping insertion in model container [2021-10-29 06:02:36,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:36,046 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 06:02:36,049 INFO L168 Benchmark]: Toolchain (without parser) took 557.37 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 78.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:36,050 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:36,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.09 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 78.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:36,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 550.09 ms. Allocated memory is still 102.8 MB. Free memory was 66.6 MB in the beginning and 78.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 0.2.1-dev-b2eff8b [2021-10-29 06:02:38,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:02:38,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:02:38,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:02:38,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:02:38,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:02:38,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:02:39,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:02:39,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:02:39,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:02:39,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:02:39,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:02:39,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:02:39,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:02:39,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:02:39,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:02:39,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:02:39,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:02:39,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:02:39,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:02:39,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:02:39,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:02:39,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:02:39,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:02:39,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:02:39,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:02:39,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:02:39,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:02:39,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:02:39,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:02:39,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:02:39,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:02:39,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:02:39,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:02:39,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:02:39,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:02:39,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:02:39,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:02:39,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:02:39,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:02:39,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:02:39,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 06:02:39,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:02:39,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:02:39,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:02:39,166 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:02:39,166 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:02:39,166 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:02:39,167 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:02:39,167 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:02:39,167 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:02:39,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 06:02:39,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 06:02:39,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:02:39,171 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:02:39,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 06:02:39,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:02:39,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:02:39,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:02:39,172 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 06:02:39,173 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 06:02:39,173 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 06:02:39,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:02:39,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:02:39,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 06:02:39,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 06:02:39,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:02:39,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:02:39,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:02:39,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 06:02:39,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:02:39,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:39,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:02:39,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:02:39,177 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 06:02:39,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 06:02:39,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:02:39,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:02:39,178 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-10-29 06:02:39,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:02:39,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:02:39,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:02:39,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:02:39,690 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:02:39,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-29 06:02:39,776 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/c86a76b8f/2e7cf05a5cb340b58222b928ef198cf7/FLAG95f3e9111 [2021-10-29 06:02:40,509 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:02:40,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-29 06:02:40,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/c86a76b8f/2e7cf05a5cb340b58222b928ef198cf7/FLAG95f3e9111 [2021-10-29 06:02:40,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/data/c86a76b8f/2e7cf05a5cb340b58222b928ef198cf7 [2021-10-29 06:02:40,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:02:40,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:02:40,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:40,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:02:40,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:02:40,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:40" (1/1) ... [2021-10-29 06:02:40,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1e5b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:40, skipping insertion in model container [2021-10-29 06:02:40,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:40" (1/1) ... [2021-10-29 06:02:40,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:02:40,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:41,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:41,234 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 06:02:41,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:41,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:41,333 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 06:02:41,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:41,450 INFO L208 MainTranslator]: Completed translation [2021-10-29 06:02:41,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41 WrapperNode [2021-10-29 06:02:41,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:41,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 06:02:41,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 06:02:41,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 06:02:41,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 06:02:41,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 06:02:41,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 06:02:41,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 06:02:41,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 06:02:41,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 06:02:41,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 06:02:41,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 06:02:41,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (1/1) ... [2021-10-29 06:02:41,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:41,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:02:41,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 06:02:41,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 06:02:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 06:02:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 06:02:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 06:02:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 06:02:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 06:02:42,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 06:02:42,202 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-29 06:02:42,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:42 BoogieIcfgContainer [2021-10-29 06:02:42,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 06:02:42,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 06:02:42,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 06:02:42,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 06:02:42,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:02:40" (1/3) ... [2021-10-29 06:02:42,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161553d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:02:42, skipping insertion in model container [2021-10-29 06:02:42,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:41" (2/3) ... [2021-10-29 06:02:42,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161553d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:02:42, skipping insertion in model container [2021-10-29 06:02:42,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:42" (3/3) ... [2021-10-29 06:02:42,216 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2021-10-29 06:02:42,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 06:02:42,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 06:02:42,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 06:02:42,290 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 06:02:42,291 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 06:02:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:42,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 06:02:42,315 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:42,316 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 06:02:42,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:42,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-10-29 06:02:42,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:42,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227474937] [2021-10-29 06:02:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:42,340 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:42,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:42,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 06:02:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:42,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 06:02:42,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:42,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:42,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:42,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227474937] [2021-10-29 06:02:42,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227474937] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:42,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:42,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 06:02:42,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787360240] [2021-10-29 06:02:42,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 06:02:42,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:42,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 06:02:42,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 06:02:42,602 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:42,692 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-29 06:02:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 06:02:42,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-29 06:02:42,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:42,703 INFO L225 Difference]: With dead ends: 18 [2021-10-29 06:02:42,704 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 06:02:42,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 06:02:42,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 06:02:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 06:02:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-29 06:02:42,743 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2021-10-29 06:02:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:42,743 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-29 06:02:42,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-29 06:02:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 06:02:42,744 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:42,744 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 06:02:42,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 06:02:42,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:42,959 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:42,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:42,960 INFO L85 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2021-10-29 06:02:42,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:42,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605014879] [2021-10-29 06:02:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:42,961 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:42,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:42,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:42,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 06:02:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:43,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 06:02:43,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:43,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605014879] [2021-10-29 06:02:43,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605014879] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:43,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:43,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 06:02:43,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202516087] [2021-10-29 06:02:43,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 06:02:43,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 06:02:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 06:02:43,084 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:43,092 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-29 06:02:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 06:02:43,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 06:02:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:43,094 INFO L225 Difference]: With dead ends: 15 [2021-10-29 06:02:43,095 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 06:02:43,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 06:02:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 06:02:43,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 06:02:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-29 06:02:43,099 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2021-10-29 06:02:43,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:43,100 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-29 06:02:43,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-29 06:02:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:43,102 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:43,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:43,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:43,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:43,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:43,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 179641051, now seen corresponding path program 1 times [2021-10-29 06:02:43,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:43,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637811367] [2021-10-29 06:02:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:43,328 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:43,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:43,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:43,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 06:02:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:43,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 06:02:43,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:43,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637811367] [2021-10-29 06:02:43,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637811367] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:43,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:43,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 06:02:43,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714211995] [2021-10-29 06:02:43,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 06:02:43,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:43,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 06:02:43,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 06:02:43,743 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:43,832 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-29 06:02:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 06:02:43,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 06:02:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:43,835 INFO L225 Difference]: With dead ends: 16 [2021-10-29 06:02:43,835 INFO L226 Difference]: Without dead ends: 16 [2021-10-29 06:02:43,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 06:02:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-29 06:02:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-29 06:02:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-29 06:02:43,840 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-10-29 06:02:43,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:43,841 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-29 06:02:43,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:43,842 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-29 06:02:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:43,842 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:43,843 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:43,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:44,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,053 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2021-10-29 06:02:44,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:44,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284902440] [2021-10-29 06:02:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:44,055 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:44,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:44,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 06:02:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:44,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 06:02:44,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,247 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:44,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284902440] [2021-10-29 06:02:44,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284902440] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:44,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:44,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 06:02:44,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752639279] [2021-10-29 06:02:44,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 06:02:44,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:44,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 06:02:44,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:02:44,251 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:44,321 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-29 06:02:44,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 06:02:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 06:02:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:44,323 INFO L225 Difference]: With dead ends: 27 [2021-10-29 06:02:44,323 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 06:02:44,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 06:02:44,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 06:02:44,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-10-29 06:02:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-29 06:02:44,336 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2021-10-29 06:02:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:44,336 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-29 06:02:44,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-29 06:02:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:44,338 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:44,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:44,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:44,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,552 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:44,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2021-10-29 06:02:44,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:44,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343805207] [2021-10-29 06:02:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:44,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:44,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:44,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 06:02:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:44,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 06:02:44,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:44,766 INFO L354 Elim1Store]: treesize reduction 10, result has 50.0 percent of original size [2021-10-29 06:02:44,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 16 [2021-10-29 06:02:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:44,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343805207] [2021-10-29 06:02:44,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343805207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:44,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:44,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 06:02:44,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966467142] [2021-10-29 06:02:44,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 06:02:44,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:44,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 06:02:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 06:02:44,894 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:44,989 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-29 06:02:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 06:02:44,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 06:02:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:44,990 INFO L225 Difference]: With dead ends: 16 [2021-10-29 06:02:44,990 INFO L226 Difference]: Without dead ends: 16 [2021-10-29 06:02:44,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:02:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-29 06:02:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-29 06:02:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-29 06:02:44,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-10-29 06:02:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:44,995 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-29 06:02:44,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-29 06:02:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:44,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:44,998 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:45,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:45,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,199 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2021-10-29 06:02:45,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:45,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680869665] [2021-10-29 06:02:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:45,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:45,203 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:45,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 06:02:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:45,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 06:02:45,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:45,412 INFO L388 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 8 treesize of output 7 [2021-10-29 06:02:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:45,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:46,070 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:46,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680869665] [2021-10-29 06:02:46,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680869665] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:46,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:46,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-29 06:02:46,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734192060] [2021-10-29 06:02:46,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 06:02:46,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:46,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 06:02:46,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-29 06:02:46,074 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:47,787 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-10-29 06:02:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 06:02:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 06:02:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:47,790 INFO L225 Difference]: With dead ends: 42 [2021-10-29 06:02:47,790 INFO L226 Difference]: Without dead ends: 42 [2021-10-29 06:02:47,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-29 06:02:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-29 06:02:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2021-10-29 06:02:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-10-29 06:02:47,796 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 8 [2021-10-29 06:02:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:47,797 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-29 06:02:47,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:02:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-10-29 06:02:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 06:02:47,798 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:47,798 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:47,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:48,014 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 06:02:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 702944005, now seen corresponding path program 1 times [2021-10-29 06:02:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:48,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035002332] [2021-10-29 06:02:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:48,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:48,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:48,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 06:02:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 06:02:48,146 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 06:02:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 06:02:48,234 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 06:02:48,234 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 06:02:48,235 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 06:02:48,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 06:02:48,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 06:02:48,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:48,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:48,453 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:48,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 06:02:48,467 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,469 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,470 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,470 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,470 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,471 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,471 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,472 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,472 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,472 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,473 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,473 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,474 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,474 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,474 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,475 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,475 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,475 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,476 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,476 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,477 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,477 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,477 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,478 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,478 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,479 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,479 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,480 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,480 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,480 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,481 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,481 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,482 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-29 06:02:48,482 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-29 06:02:48,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:02:48 BoogieIcfgContainer [2021-10-29 06:02:48,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 06:02:48,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 06:02:48,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 06:02:48,515 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 06:02:48,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:42" (3/4) ... [2021-10-29 06:02:48,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 06:02:48,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 06:02:48,521 INFO L168 Benchmark]: Toolchain (without parser) took 7795.14 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 32.4 MB in the beginning and 56.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:48,522 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:48,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.98 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 28.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:48,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.64 ms. Allocated memory is still 56.6 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:48,524 INFO L168 Benchmark]: Boogie Preprocessor took 56.95 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 25.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:48,525 INFO L168 Benchmark]: RCFGBuilder took 608.22 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.5 MB in the beginning and 43.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:48,526 INFO L168 Benchmark]: TraceAbstraction took 6306.98 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 42.7 MB in the beginning and 57.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 336.9 kB. Max. memory is 16.1 GB. [2021-10-29 06:02:48,527 INFO L168 Benchmark]: Witness Printer took 5.16 ms. Allocated memory is still 86.0 MB. Free memory was 57.2 MB in the beginning and 56.6 MB in the end (delta: 652.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:48,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 719.98 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 28.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.64 ms. Allocated memory is still 56.6 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.95 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 25.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 608.22 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.5 MB in the beginning and 43.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6306.98 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 42.7 MB in the beginning and 57.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 336.9 kB. Max. memory is 16.1 GB. * Witness Printer took 5.16 ms. Allocated memory is still 86.0 MB. Free memory was 57.2 MB in the beginning and 56.6 MB in the end (delta: 652.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [i=1, ind=0, newsize=0, num=0] [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] int *a = (int *)malloc(sizeof(int)); [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 [L515] int *a = (int *)arg; VAL [i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [i=1, ind=0, newsize=1, num=1] [L516] COND FALSE !(newsize < num) VAL [i=1, ind=0, newsize=1, num=1] [L523] return 0; VAL [i=1, ind=0, newsize=1, num=1] [L536] return 0; VAL [i=1, ind=0, newsize=1, num=1] - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 193 SDslu, 81 SDs, 0 SdLazy, 131 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=6, InterpolantAutomatonStates: 33, 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, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 12 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 [2021-10-29 06:02:48,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8ceaf6-554d-4631-966b-69cb10cf5950/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...