./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5e00b9cd3876aa8df4263099f6b8339445d38f8 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5e00b9cd3876aa8df4263099f6b8339445d38f8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:38:10,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:38:10,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:38:10,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:38:10,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:38:10,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:38:10,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:38:10,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:38:10,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:38:10,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:38:10,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:38:10,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:38:10,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:38:10,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:38:10,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:38:10,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:38:10,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:38:10,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:38:10,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:38:10,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:38:10,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:38:10,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:38:10,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:38:10,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:38:10,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:38:10,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:38:10,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:38:10,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:38:10,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:38:10,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:38:10,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:38:10,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:38:10,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:38:10,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:38:10,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:38:10,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:38:10,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:38:10,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:38:10,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:38:10,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:38:10,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:38:10,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-03 12:38:10,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:38:10,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:38:10,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:38:10,752 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:38:10,752 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:38:10,752 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:38:10,753 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:38:10,753 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:38:10,753 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:38:10,753 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:38:10,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:38:10,755 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:38:10,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:38:10,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:38:10,756 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:38:10,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 12:38:10,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 12:38:10,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:38:10,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:38:10,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:38:10,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:38:10,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:38:10,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:38:10,758 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-03 12:38:10,759 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-03 12:38:10,759 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-03 12:38:10,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:38:10,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:38:10,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:38:10,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:38:10,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:38:10,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:38:10,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:38:10,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:38:10,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:38:10,763 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:38:10,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:38:10,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:38:10,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:38:10,764 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-12-03 12:38:11,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:38:11,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:38:11,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:38:11,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:38:11,110 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:38:11,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-03 12:38:11,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/3fb63df6d/bd5f3923ff22481084fef21a7df7d47b/FLAGcc0cbe02f [2020-12-03 12:38:11,766 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:38:11,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-03 12:38:11,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/3fb63df6d/bd5f3923ff22481084fef21a7df7d47b/FLAGcc0cbe02f [2020-12-03 12:38:12,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/3fb63df6d/bd5f3923ff22481084fef21a7df7d47b [2020-12-03 12:38:12,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:38:12,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:38:12,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:12,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:38:12,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:38:12,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:12" (1/1) ... [2020-12-03 12:38:12,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e18418b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:12, skipping insertion in model container [2020-12-03 12:38:12,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:12" (1/1) ... [2020-12-03 12:38:12,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:38:12,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:38:12,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:12,556 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) [2020-12-03 12:38:12,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51e5af09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:12, skipping insertion in model container [2020-12-03 12:38:12,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:12,558 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-03 12:38:12,561 INFO L168 Benchmark]: Toolchain (without parser) took 450.78 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.8 MB in the beginning and 73.5 MB in the end (delta: -25.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:12,563 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 79.7 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:38:12,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.71 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.6 MB in the beginning and 73.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:12,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 79.7 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.71 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.6 MB in the beginning and 73.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 10.2 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 0.2.0-7b2dab5 [2020-12-03 12:38:15,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:38:15,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:38:15,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:38:15,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:38:15,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:38:15,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:38:15,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:38:15,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:38:15,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:38:15,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:38:15,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:38:15,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:38:15,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:38:15,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:38:15,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:38:15,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:38:15,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:38:15,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:38:15,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:38:15,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:38:15,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:38:15,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:38:15,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:38:15,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:38:15,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:38:15,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:38:15,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:38:15,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:38:15,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:38:15,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:38:15,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:38:15,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:38:15,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:38:15,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:38:15,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:38:15,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:38:15,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:38:15,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:38:15,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:38:15,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:38:15,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-03 12:38:15,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:38:15,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:38:15,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:38:15,262 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:38:15,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:38:15,263 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:38:15,263 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:38:15,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:38:15,263 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:38:15,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 12:38:15,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 12:38:15,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:38:15,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:38:15,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:38:15,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:38:15,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:38:15,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:38:15,267 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-03 12:38:15,268 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-03 12:38:15,268 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-03 12:38:15,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:38:15,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:38:15,268 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 12:38:15,269 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 12:38:15,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:38:15,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:38:15,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:38:15,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 12:38:15,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:38:15,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:38:15,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:38:15,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:38:15,271 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-03 12:38:15,271 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 12:38:15,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:38:15,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:38:15,287 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-12-03 12:38:15,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:38:15,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:38:15,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:38:15,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:38:15,750 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:38:15,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-03 12:38:15,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/f7f52e2b8/4ace3205e29c4474b7c4b9f1f6e32e57/FLAGe4768e59f [2020-12-03 12:38:16,500 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:38:16,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-03 12:38:16,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/f7f52e2b8/4ace3205e29c4474b7c4b9f1f6e32e57/FLAGe4768e59f [2020-12-03 12:38:16,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/data/f7f52e2b8/4ace3205e29c4474b7c4b9f1f6e32e57 [2020-12-03 12:38:16,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:38:16,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:38:16,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:16,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:38:16,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:38:16,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:16" (1/1) ... [2020-12-03 12:38:16,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb2d04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:16, skipping insertion in model container [2020-12-03 12:38:16,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:16" (1/1) ... [2020-12-03 12:38:16,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:38:16,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:38:17,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:17,133 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-03 12:38:17,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:38:17,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:17,201 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:38:17,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:17,372 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:38:17,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17 WrapperNode [2020-12-03 12:38:17,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:17,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:38:17,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:38:17,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:38:17,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:38:17,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:38:17,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:38:17,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:38:17,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... [2020-12-03 12:38:17,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:38:17,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:38:17,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:38:17,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:38:17,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:38:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-03 12:38:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:38:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 12:38:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:38:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:38:17,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:38:17,996 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-03 12:38:17,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:17 BoogieIcfgContainer [2020-12-03 12:38:17,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:38:17,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:38:17,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:38:18,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:38:18,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:38:16" (1/3) ... [2020-12-03 12:38:18,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377c4646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:38:18, skipping insertion in model container [2020-12-03 12:38:18,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:17" (2/3) ... [2020-12-03 12:38:18,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377c4646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:38:18, skipping insertion in model container [2020-12-03 12:38:18,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:17" (3/3) ... [2020-12-03 12:38:18,006 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2020-12-03 12:38:18,023 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:38:18,032 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-03 12:38:18,045 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-03 12:38:18,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:38:18,080 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-03 12:38:18,080 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:38:18,080 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:38:18,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:38:18,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:38:18,081 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:38:18,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:38:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-03 12:38:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:38:18,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:18,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:38:18,106 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:18,113 INFO L82 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2020-12-03 12:38:18,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:18,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406092537] [2020-12-03 12:38:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:18,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-03 12:38:18,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:18,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:18,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406092537] [2020-12-03 12:38:18,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:18,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:38:18,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002129023] [2020-12-03 12:38:18,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:38:18,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:18,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:38:18,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:38:18,345 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-12-03 12:38:18,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:18,433 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-12-03 12:38:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:38:18,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-03 12:38:18,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:18,444 INFO L225 Difference]: With dead ends: 18 [2020-12-03 12:38:18,444 INFO L226 Difference]: Without dead ends: 15 [2020-12-03 12:38:18,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:38:18,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-03 12:38:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-03 12:38:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-03 12:38:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-12-03 12:38:18,488 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-12-03 12:38:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:18,489 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-12-03 12:38:18,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:38:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-03 12:38:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:38:18,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:18,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:38:18,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 12:38:18,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:18,709 INFO L82 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2020-12-03 12:38:18,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:18,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993440491] [2020-12-03 12:38:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:18,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:38:18,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:18,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:18,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993440491] [2020-12-03 12:38:18,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:18,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:38:18,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824826003] [2020-12-03 12:38:18,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:38:18,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:18,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:38:18,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:38:18,847 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-12-03 12:38:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:18,858 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-12-03 12:38:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:38:18,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:38:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:18,860 INFO L225 Difference]: With dead ends: 15 [2020-12-03 12:38:18,860 INFO L226 Difference]: Without dead ends: 15 [2020-12-03 12:38:18,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:38:18,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-03 12:38:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-03 12:38:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-03 12:38:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-03 12:38:18,869 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2020-12-03 12:38:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:18,870 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-03 12:38:18,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:38:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-03 12:38:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:38:18,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:18,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:19,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,092 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:19,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:19,093 INFO L82 PathProgramCache]: Analyzing trace with hash 179641051, now seen corresponding path program 1 times [2020-12-03 12:38:19,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:19,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805542077] [2020-12-03 12:38:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:19,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-03 12:38:19,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:19,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:19,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805542077] [2020-12-03 12:38:19,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:19,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:38:19,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233075012] [2020-12-03 12:38:19,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:38:19,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:19,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:38:19,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:38:19,251 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2020-12-03 12:38:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:19,301 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-12-03 12:38:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:38:19,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-03 12:38:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:19,306 INFO L225 Difference]: With dead ends: 16 [2020-12-03 12:38:19,306 INFO L226 Difference]: Without dead ends: 16 [2020-12-03 12:38:19,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:38:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-03 12:38:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-03 12:38:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-03 12:38:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-03 12:38:19,315 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-12-03 12:38:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:19,315 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-03 12:38:19,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:38:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-03 12:38:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:38:19,324 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:19,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:19,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,540 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:19,540 INFO L82 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2020-12-03 12:38:19,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:19,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017472988] [2020-12-03 12:38:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:19,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-03 12:38:19,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:19,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:19,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017472988] [2020-12-03 12:38:19,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:19,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:38:19,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483486993] [2020-12-03 12:38:19,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:38:19,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:19,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:38:19,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:38:19,635 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-12-03 12:38:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:19,707 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-12-03 12:38:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:38:19,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-03 12:38:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:19,709 INFO L225 Difference]: With dead ends: 27 [2020-12-03 12:38:19,709 INFO L226 Difference]: Without dead ends: 27 [2020-12-03 12:38:19,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:38:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-03 12:38:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-12-03 12:38:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-03 12:38:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-03 12:38:19,723 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2020-12-03 12:38:19,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:19,723 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-03 12:38:19,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:38:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-03 12:38:19,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:38:19,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:19,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:19,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,937 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:19,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:19,938 INFO L82 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2020-12-03 12:38:19,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:19,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249543690] [2020-12-03 12:38:19,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:19,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-03 12:38:19,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:20,053 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 12:38:20,054 INFO L382 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 25 [2020-12-03 12:38:20,059 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 12:38:20,088 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-12-03 12:38:20,093 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 12:38:20,093 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-12-03 12:38:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:20,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:20,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249543690] [2020-12-03 12:38:20,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:20,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:38:20,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807932336] [2020-12-03 12:38:20,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:38:20,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:20,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:38:20,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:38:20,127 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2020-12-03 12:38:20,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:20,216 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-12-03 12:38:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:38:20,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-03 12:38:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:20,221 INFO L225 Difference]: With dead ends: 16 [2020-12-03 12:38:20,221 INFO L226 Difference]: Without dead ends: 16 [2020-12-03 12:38:20,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:38:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-03 12:38:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-03 12:38:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-03 12:38:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-03 12:38:20,224 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-12-03 12:38:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:20,224 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-03 12:38:20,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:38:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-03 12:38:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:38:20,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:20,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:20,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-03 12:38:20,438 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:20,438 INFO L82 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2020-12-03 12:38:20,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:20,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39790130] [2020-12-03 12:38:20,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:20,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 12:38:20,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:38:20,536 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-12-03 12:38:20,537 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-03 12:38:20,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 12:38:20,547 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 12:38:20,547 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2020-12-03 12:38:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:20,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:38:20,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39790130] [2020-12-03 12:38:20,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:20,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:38:20,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680504099] [2020-12-03 12:38:20,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:38:20,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:38:20,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:38:20,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:38:20,593 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2020-12-03 12:38:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:20,751 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-12-03 12:38:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:38:20,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-03 12:38:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:20,753 INFO L225 Difference]: With dead ends: 24 [2020-12-03 12:38:20,753 INFO L226 Difference]: Without dead ends: 24 [2020-12-03 12:38:20,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:38:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-03 12:38:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2020-12-03 12:38:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-03 12:38:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-12-03 12:38:20,757 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2020-12-03 12:38:20,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:20,757 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-12-03 12:38:20,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:38:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-03 12:38:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:38:20,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:20,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:20,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-03 12:38:20,969 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-03 12:38:20,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:20,969 INFO L82 PathProgramCache]: Analyzing trace with hash 702944005, now seen corresponding path program 1 times [2020-12-03 12:38:20,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:38:20,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233353207] [2020-12-03 12:38:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97c2fb15-c596-4539-b28c-a9820fb3a48b/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-03 12:38:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:38:21,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:38:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:38:21,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:38:21,152 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-03 12:38:21,153 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:38:21,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-03 12:38:21,367 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,368 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,369 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,369 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,369 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,370 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,370 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,370 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,371 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,371 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,372 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,372 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,372 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,373 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,373 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,373 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,374 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,374 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,374 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,375 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,375 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,376 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,376 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,376 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,377 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,377 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,377 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,378 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,378 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,378 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,379 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,379 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,380 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-12-03 12:38:21,380 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-12-03 12:38:21,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:38:21 BoogieIcfgContainer [2020-12-03 12:38:21,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:38:21,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:38:21,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:38:21,400 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:38:21,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:17" (3/4) ... [2020-12-03 12:38:21,403 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 12:38:21,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:38:21,405 INFO L168 Benchmark]: Toolchain (without parser) took 4666.69 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 49.5 MB in the beginning and 70.3 MB in the end (delta: -20.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,406 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 67.1 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:38:21,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.72 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 42.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,408 INFO L168 Benchmark]: Boogie Preprocessor took 30.72 ms. Allocated memory is still 67.1 MB. Free memory was 40.8 MB in the beginning and 39.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,408 INFO L168 Benchmark]: RCFGBuilder took 541.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.4 MB in the beginning and 44.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,409 INFO L168 Benchmark]: TraceAbstraction took 3399.86 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 44.1 MB in the beginning and 71.2 MB in the end (delta: -27.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:38:21,410 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 70.3 MB in the end (delta: 889.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:38:21,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 67.1 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.72 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 42.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.36 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.72 ms. Allocated memory is still 67.1 MB. Free memory was 40.8 MB in the beginning and 39.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 541.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.4 MB in the beginning and 44.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3399.86 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 44.1 MB in the beginning and 71.2 MB in the end (delta: -27.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 70.3 MB in the end (delta: 889.1 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_#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_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_#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_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_#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_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_#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_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_#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_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_#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_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_#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_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_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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)); VAL [i=1, ind=0, newsize=0, num=1] [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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 107 SDslu, 65 SDs, 0 SdLazy, 94 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 777 SizeOfPredicates, 13 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...