./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 .............................................................................................................................................. 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_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:24:48,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:24:48,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:24:48,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:24:48,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:24:48,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:24:48,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:24:48,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:24:48,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:24:48,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:24:48,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:24:48,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:24:48,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:24:48,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:24:48,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:24:48,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:24:48,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:24:48,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:24:48,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:24:48,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:24:48,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:24:48,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:24:48,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:24:48,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:24:48,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:24:48,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:24:48,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:24:48,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:24:48,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:24:48,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:24:48,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:24:48,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:24:48,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:24:48,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:24:48,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:24:48,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:24:48,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:24:48,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:24:48,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:24:48,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:24:48,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:24:48,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-30 02:24:48,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:24:48,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:24:48,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:24:48,875 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:24:48,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:24:48,876 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:24:48,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:24:48,877 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:24:48,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:24:48,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:24:48,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:24:48,878 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:24:48,878 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:24:48,879 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:24:48,879 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:24:48,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 02:24:48,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 02:24:48,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:24:48,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:24:48,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:24:48,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:24:48,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:24:48,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:24:48,883 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 02:24:48,883 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 02:24:48,883 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 02:24:48,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:24:48,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:24:48,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:24:48,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:24:48,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:24:48,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:24:48,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:24:48,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:24:48,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:24:48,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:24:48,887 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:24:48,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:24:48,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:24:48,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:24:48,889 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_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2020-11-30 02:24:49,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:24:49,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:24:49,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:24:49,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:24:49,312 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:24:49,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2020-11-30 02:24:49,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/f9ddcad4f/96354a44207c4c208038a2cea8df3cc5/FLAG13f2738f3 [2020-11-30 02:24:50,179 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:24:50,180 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2020-11-30 02:24:50,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/f9ddcad4f/96354a44207c4c208038a2cea8df3cc5/FLAG13f2738f3 [2020-11-30 02:24:50,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/f9ddcad4f/96354a44207c4c208038a2cea8df3cc5 [2020-11-30 02:24:50,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:24:50,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:24:50,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:50,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:24:50,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:24:50,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:50" (1/1) ... [2020-11-30 02:24:50,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293757b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:50, skipping insertion in model container [2020-11-30 02:24:50,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:50" (1/1) ... [2020-11-30 02:24:50,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:24:50,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:24:51,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:51,220 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) [2020-11-30 02:24:51,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27e1703f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:51, skipping insertion in model container [2020-11-30 02:24:51,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:51,222 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-30 02:24:51,225 INFO L168 Benchmark]: Toolchain (without parser) took 801.75 ms. Allocated memory is still 100.7 MB. Free memory was 69.8 MB in the beginning and 73.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:51,227 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:24:51,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.45 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 73.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:51,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 797.45 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 73.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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-a4ecdab [2020-11-30 02:24:53,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:24:53,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:24:53,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:24:53,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:24:53,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:24:53,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:24:53,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:24:53,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:24:53,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:24:53,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:24:53,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:24:53,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:24:53,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:24:53,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:24:53,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:24:53,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:24:54,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:24:54,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:24:54,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:24:54,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:24:54,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:24:54,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:24:54,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:24:54,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:24:54,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:24:54,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:24:54,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:24:54,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:24:54,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:24:54,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:24:54,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:24:54,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:24:54,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:24:54,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:24:54,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:24:54,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:24:54,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:24:54,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:24:54,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:24:54,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:24:54,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-30 02:24:54,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:24:54,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:24:54,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:24:54,123 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:24:54,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:24:54,124 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:24:54,124 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:24:54,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:24:54,125 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:24:54,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 02:24:54,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 02:24:54,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:24:54,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:24:54,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:24:54,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:24:54,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:24:54,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:24:54,130 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 02:24:54,130 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 02:24:54,131 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 02:24:54,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:24:54,131 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:24:54,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:24:54,132 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:24:54,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:24:54,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:24:54,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:24:54,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:24:54,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:24:54,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:24:54,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:24:54,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:24:54,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:24:54,135 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:24:54,135 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:24:54,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:24:54,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:24:54,137 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_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2020-11-30 02:24:54,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:24:54,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:24:54,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:24:54,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:24:54,688 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:24:54,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2020-11-30 02:24:54,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/632c27c81/29943c2ca8c74ad19f4128de022cd3cd/FLAGd55c858e8 [2020-11-30 02:24:55,495 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:24:55,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2020-11-30 02:24:55,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/632c27c81/29943c2ca8c74ad19f4128de022cd3cd/FLAGd55c858e8 [2020-11-30 02:24:55,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/data/632c27c81/29943c2ca8c74ad19f4128de022cd3cd [2020-11-30 02:24:55,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:24:55,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:24:55,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:55,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:24:55,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:24:55,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:55" (1/1) ... [2020-11-30 02:24:55,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ea3059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:55, skipping insertion in model container [2020-11-30 02:24:55,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:55" (1/1) ... [2020-11-30 02:24:55,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:24:55,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:24:56,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:56,298 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 02:24:56,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:24:56,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:56,421 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:24:56,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:56,679 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:24:56,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56 WrapperNode [2020-11-30 02:24:56,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:56,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:24:56,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:24:56,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:24:56,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:24:56,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:24:56,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:24:56,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:24:56,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... [2020-11-30 02:24:56,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:24:56,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:24:56,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:24:56,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:24:56,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:24:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-11-30 02:24:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-11-30 02:24:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 02:24:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:24:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:24:56,872 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 02:24:57,740 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:24:57,740 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 02:24:57,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:57 BoogieIcfgContainer [2020-11-30 02:24:57,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:24:57,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:24:57,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:24:57,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:24:57,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:24:55" (1/3) ... [2020-11-30 02:24:57,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1763af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:24:57, skipping insertion in model container [2020-11-30 02:24:57,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:56" (2/3) ... [2020-11-30 02:24:57,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1763af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:24:57, skipping insertion in model container [2020-11-30 02:24:57,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:57" (3/3) ... [2020-11-30 02:24:57,758 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2020-11-30 02:24:57,771 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:24:57,776 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-30 02:24:57,777 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 02:24:57,824 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,825 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,825 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,825 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,826 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,826 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,826 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,833 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,834 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,834 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,837 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,840 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,840 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,841 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,841 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,842 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,846 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,848 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,849 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,850 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,857 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,858 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,859 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,859 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:57,864 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 02:24:57,875 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-11-30 02:24:57,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:24:57,898 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 02:24:57,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:24:57,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:24:57,899 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:24:57,899 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:24:57,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:24:57,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:24:57,921 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 02:24:57,923 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 94 transitions, 198 flow [2020-11-30 02:24:57,930 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 94 transitions, 198 flow [2020-11-30 02:24:57,932 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 94 transitions, 198 flow [2020-11-30 02:24:58,016 INFO L129 PetriNetUnfolder]: 8/97 cut-off events. [2020-11-30 02:24:58,017 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 02:24:58,032 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 8/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2020-11-30 02:24:58,036 INFO L116 LiptonReduction]: Number of co-enabled transitions 2280 [2020-11-30 02:24:58,508 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-11-30 02:24:59,128 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-11-30 02:25:00,514 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-11-30 02:25:00,653 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-11-30 02:25:02,539 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-30 02:25:02,938 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-30 02:25:03,491 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-30 02:25:03,722 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-30 02:25:04,558 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-11-30 02:25:05,007 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-30 02:25:05,151 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-30 02:25:05,402 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-30 02:25:05,504 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-30 02:25:06,064 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-11-30 02:25:06,840 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-30 02:25:06,849 INFO L131 LiptonReduction]: Checked pairs total: 6701 [2020-11-30 02:25:06,849 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-30 02:25:06,860 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 45 transitions, 100 flow [2020-11-30 02:25:06,975 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1140 states. [2020-11-30 02:25:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states. [2020-11-30 02:25:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-11-30 02:25:06,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:06,984 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-11-30 02:25:06,985 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:06,992 INFO L82 PathProgramCache]: Analyzing trace with hash 368, now seen corresponding path program 1 times [2020-11-30 02:25:07,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:07,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440643852] [2020-11-30 02:25:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:07,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:25:07,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:07,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:07,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440643852] [2020-11-30 02:25:07,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:07,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2020-11-30 02:25:07,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585011227] [2020-11-30 02:25:07,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:25:07,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:07,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:25:07,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:25:07,163 INFO L87 Difference]: Start difference. First operand 1140 states. Second operand 2 states. [2020-11-30 02:25:07,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:07,241 INFO L93 Difference]: Finished difference Result 1138 states and 3441 transitions. [2020-11-30 02:25:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:25:07,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-11-30 02:25:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:07,302 INFO L225 Difference]: With dead ends: 1138 [2020-11-30 02:25:07,303 INFO L226 Difference]: Without dead ends: 1133 [2020-11-30 02:25:07,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:25:07,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2020-11-30 02:25:07,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2020-11-30 02:25:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-11-30 02:25:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 3428 transitions. [2020-11-30 02:25:07,505 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 3428 transitions. Word has length 1 [2020-11-30 02:25:07,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:07,506 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 3428 transitions. [2020-11-30 02:25:07,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:25:07,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 3428 transitions. [2020-11-30 02:25:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-30 02:25:07,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:07,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-30 02:25:07,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:25:07,724 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:07,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:07,725 INFO L82 PathProgramCache]: Analyzing trace with hash 11513, now seen corresponding path program 1 times [2020-11-30 02:25:07,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:07,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915920151] [2020-11-30 02:25:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:07,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:25:07,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:08,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:08,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915920151] [2020-11-30 02:25:08,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:08,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-11-30 02:25:08,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721697668] [2020-11-30 02:25:08,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:25:08,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:08,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:25:08,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:08,017 INFO L87 Difference]: Start difference. First operand 1133 states and 3428 transitions. Second operand 3 states. [2020-11-30 02:25:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:08,206 INFO L93 Difference]: Finished difference Result 1132 states and 3427 transitions. [2020-11-30 02:25:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:08,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-30 02:25:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:08,221 INFO L225 Difference]: With dead ends: 1132 [2020-11-30 02:25:08,221 INFO L226 Difference]: Without dead ends: 1131 [2020-11-30 02:25:08,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2020-11-30 02:25:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2020-11-30 02:25:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-11-30 02:25:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 3426 transitions. [2020-11-30 02:25:08,283 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 3426 transitions. Word has length 2 [2020-11-30 02:25:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:08,284 INFO L481 AbstractCegarLoop]: Abstraction has 1131 states and 3426 transitions. [2020-11-30 02:25:08,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:25:08,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 3426 transitions. [2020-11-30 02:25:08,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 02:25:08,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:08,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 02:25:08,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:25:08,509 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash 363970, now seen corresponding path program 1 times [2020-11-30 02:25:08,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281901947] [2020-11-30 02:25:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:25:08,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:08,818 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2020-11-30 02:25:08,820 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 02:25:08,820 INFO L384 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 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 02:25:08,821 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:25:08,884 INFO L625 ElimStorePlain]: treesize reduction 10, result has 72.2 percent of original size [2020-11-30 02:25:08,897 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 02:25:08,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:16, output treesize:14 [2020-11-30 02:25:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:08,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:08,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281901947] [2020-11-30 02:25:08,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:08,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2020-11-30 02:25:08,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914728849] [2020-11-30 02:25:08,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:25:08,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:25:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:25:08,970 INFO L87 Difference]: Start difference. First operand 1131 states and 3426 transitions. Second operand 4 states. [2020-11-30 02:25:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:09,163 INFO L93 Difference]: Finished difference Result 1120 states and 3403 transitions. [2020-11-30 02:25:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:09,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2020-11-30 02:25:09,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:09,180 INFO L225 Difference]: With dead ends: 1120 [2020-11-30 02:25:09,181 INFO L226 Difference]: Without dead ends: 1120 [2020-11-30 02:25:09,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:25:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-11-30 02:25:09,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1120. [2020-11-30 02:25:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-11-30 02:25:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 3403 transitions. [2020-11-30 02:25:09,237 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 3403 transitions. Word has length 3 [2020-11-30 02:25:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:09,237 INFO L481 AbstractCegarLoop]: Abstraction has 1120 states and 3403 transitions. [2020-11-30 02:25:09,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:25:09,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 3403 transitions. [2020-11-30 02:25:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 02:25:09,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:09,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 02:25:09,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:25:09,460 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash 363972, now seen corresponding path program 1 times [2020-11-30 02:25:09,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:09,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74374429] [2020-11-30 02:25:09,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:09,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:25:09,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:09,630 INFO L350 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2020-11-30 02:25:09,630 INFO L384 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 2 case distinctions, treesize of input 12 treesize of output 16 [2020-11-30 02:25:09,631 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:25:09,641 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 02:25:09,643 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 02:25:09,644 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:12, output treesize:16 [2020-11-30 02:25:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:09,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:09,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74374429] [2020-11-30 02:25:09,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:09,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-11-30 02:25:09,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932838001] [2020-11-30 02:25:09,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:25:09,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:09,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:25:09,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:09,671 INFO L87 Difference]: Start difference. First operand 1120 states and 3403 transitions. Second operand 3 states. [2020-11-30 02:25:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:09,777 INFO L93 Difference]: Finished difference Result 1109 states and 3380 transitions. [2020-11-30 02:25:09,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:09,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 02:25:09,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:09,791 INFO L225 Difference]: With dead ends: 1109 [2020-11-30 02:25:09,791 INFO L226 Difference]: Without dead ends: 1109 [2020-11-30 02:25:09,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-11-30 02:25:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2020-11-30 02:25:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-11-30 02:25:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 3380 transitions. [2020-11-30 02:25:09,846 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 3380 transitions. Word has length 3 [2020-11-30 02:25:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:09,846 INFO L481 AbstractCegarLoop]: Abstraction has 1109 states and 3380 transitions. [2020-11-30 02:25:09,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:25:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 3380 transitions. [2020-11-30 02:25:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:25:09,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:09,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:25:10,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:25:10,060 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:10,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:10,061 INFO L82 PathProgramCache]: Analyzing trace with hash 349784619, now seen corresponding path program 1 times [2020-11-30 02:25:10,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:10,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115747125] [2020-11-30 02:25:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:10,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 02:25:10,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:10,240 INFO L350 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2020-11-30 02:25:10,241 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 23 [2020-11-30 02:25:10,243 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:25:10,259 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 02:25:10,272 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 02:25:10,273 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:20 [2020-11-30 02:25:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:10,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:10,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115747125] [2020-11-30 02:25:10,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:10,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2020-11-30 02:25:10,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743804215] [2020-11-30 02:25:10,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:25:10,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:10,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:25:10,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:25:10,373 INFO L87 Difference]: Start difference. First operand 1109 states and 3380 transitions. Second operand 4 states. [2020-11-30 02:25:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:10,500 INFO L93 Difference]: Finished difference Result 988 states and 2995 transitions. [2020-11-30 02:25:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:10,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-30 02:25:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:10,513 INFO L225 Difference]: With dead ends: 988 [2020-11-30 02:25:10,513 INFO L226 Difference]: Without dead ends: 988 [2020-11-30 02:25:10,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:25:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-11-30 02:25:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2020-11-30 02:25:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2020-11-30 02:25:10,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2995 transitions. [2020-11-30 02:25:10,571 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2995 transitions. Word has length 5 [2020-11-30 02:25:10,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:10,572 INFO L481 AbstractCegarLoop]: Abstraction has 988 states and 2995 transitions. [2020-11-30 02:25:10,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:25:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2995 transitions. [2020-11-30 02:25:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:25:10,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:10,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:25:10,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 02:25:10,798 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash 349784603, now seen corresponding path program 1 times [2020-11-30 02:25:10,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:10,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053381373] [2020-11-30 02:25:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:10,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:25:10,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:10,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:10,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:10,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053381373] [2020-11-30 02:25:10,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:10,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-11-30 02:25:10,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041045333] [2020-11-30 02:25:10,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:25:10,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:10,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:25:10,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:10,903 INFO L87 Difference]: Start difference. First operand 988 states and 2995 transitions. Second operand 3 states. [2020-11-30 02:25:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:10,925 INFO L93 Difference]: Finished difference Result 867 states and 2610 transitions. [2020-11-30 02:25:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:10,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:25:10,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:10,935 INFO L225 Difference]: With dead ends: 867 [2020-11-30 02:25:10,936 INFO L226 Difference]: Without dead ends: 867 [2020-11-30 02:25:10,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2020-11-30 02:25:10,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2020-11-30 02:25:10,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-11-30 02:25:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2610 transitions. [2020-11-30 02:25:11,003 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2610 transitions. Word has length 5 [2020-11-30 02:25:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:11,004 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 2610 transitions. [2020-11-30 02:25:11,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:25:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2610 transitions. [2020-11-30 02:25:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:25:11,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:11,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:25:11,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 02:25:11,222 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:11,222 INFO L82 PathProgramCache]: Analyzing trace with hash 349784621, now seen corresponding path program 1 times [2020-11-30 02:25:11,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:11,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973004559] [2020-11-30 02:25:11,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/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 [2020-11-30 02:25:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:11,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:25:11,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:11,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:11,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973004559] [2020-11-30 02:25:11,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:11,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-11-30 02:25:11,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399700807] [2020-11-30 02:25:11,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:25:11,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:11,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:25:11,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:11,343 INFO L87 Difference]: Start difference. First operand 867 states and 2610 transitions. Second operand 3 states. [2020-11-30 02:25:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:11,362 INFO L93 Difference]: Finished difference Result 746 states and 2225 transitions. [2020-11-30 02:25:11,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:25:11,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:25:11,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:11,371 INFO L225 Difference]: With dead ends: 746 [2020-11-30 02:25:11,371 INFO L226 Difference]: Without dead ends: 746 [2020-11-30 02:25:11,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:25:11,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-11-30 02:25:11,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2020-11-30 02:25:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-11-30 02:25:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2225 transitions. [2020-11-30 02:25:11,411 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2225 transitions. Word has length 5 [2020-11-30 02:25:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:11,411 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 2225 transitions. [2020-11-30 02:25:11,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:25:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2225 transitions. [2020-11-30 02:25:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:25:11,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:11,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:25:11,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 02:25:11,630 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:11,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:11,631 INFO L82 PathProgramCache]: Analyzing trace with hash 843852313, now seen corresponding path program 1 times [2020-11-30 02:25:11,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:11,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906385158] [2020-11-30 02:25:11,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-30 02:25:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:11,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:25:11,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:11,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:11,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:14,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906385158] [2020-11-30 02:25:14,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:14,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2020-11-30 02:25:14,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207583896] [2020-11-30 02:25:14,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:25:14,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:14,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:25:14,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2020-11-30 02:25:14,106 INFO L87 Difference]: Start difference. First operand 746 states and 2225 transitions. Second operand 10 states. [2020-11-30 02:25:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:15,117 INFO L93 Difference]: Finished difference Result 625 states and 1840 transitions. [2020-11-30 02:25:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:25:15,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2020-11-30 02:25:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:15,135 INFO L225 Difference]: With dead ends: 625 [2020-11-30 02:25:15,135 INFO L226 Difference]: Without dead ends: 609 [2020-11-30 02:25:15,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2020-11-30 02:25:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-11-30 02:25:15,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2020-11-30 02:25:15,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-11-30 02:25:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1796 transitions. [2020-11-30 02:25:15,166 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1796 transitions. Word has length 8 [2020-11-30 02:25:15,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:15,166 INFO L481 AbstractCegarLoop]: Abstraction has 609 states and 1796 transitions. [2020-11-30 02:25:15,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:25:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1796 transitions. [2020-11-30 02:25:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:25:15,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:15,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:25:15,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-30 02:25:15,379 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -123842475, now seen corresponding path program 1 times [2020-11-30 02:25:15,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:15,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397313156] [2020-11-30 02:25:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-30 02:25:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:25:15,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:25:15,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:25:15,547 INFO L350 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2020-11-30 02:25:15,547 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 23 [2020-11-30 02:25:15,550 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:25:15,566 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 02:25:15,568 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 02:25:15,568 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:20 [2020-11-30 02:25:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:15,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:25:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:25:15,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397313156] [2020-11-30 02:25:15,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:25:15,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2020-11-30 02:25:15,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623940125] [2020-11-30 02:25:15,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:25:15,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:25:15,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:25:15,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:25:15,873 INFO L87 Difference]: Start difference. First operand 609 states and 1796 transitions. Second operand 10 states. [2020-11-30 02:25:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:25:16,837 INFO L93 Difference]: Finished difference Result 888 states and 2589 transitions. [2020-11-30 02:25:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:25:16,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-11-30 02:25:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:25:16,848 INFO L225 Difference]: With dead ends: 888 [2020-11-30 02:25:16,848 INFO L226 Difference]: Without dead ends: 888 [2020-11-30 02:25:16,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:25:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-11-30 02:25:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 772. [2020-11-30 02:25:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-11-30 02:25:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 2338 transitions. [2020-11-30 02:25:16,890 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 2338 transitions. Word has length 9 [2020-11-30 02:25:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:25:16,890 INFO L481 AbstractCegarLoop]: Abstraction has 772 states and 2338 transitions. [2020-11-30 02:25:16,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:25:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 2338 transitions. [2020-11-30 02:25:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:25:16,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:25:16,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:25:17,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-30 02:25:17,110 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2020-11-30 02:25:17,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:25:17,111 INFO L82 PathProgramCache]: Analyzing trace with hash -123842474, now seen corresponding path program 1 times [2020-11-30 02:25:17,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:25:17,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429646062] [2020-11-30 02:25:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-30 02:25:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:25:17,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:25:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:25:17,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:25:17,323 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-30 02:25:17,323 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:25:17,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-30 02:25:17,525 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-30 02:25:17,529 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [301] [301] L1045-2-->L1049-1: Formula: (or (not (= (_ bv1 32) ~y~0_In257469414)) (= ~z~0_In257469414 (_ bv0 32))) InVars {~z~0=~z~0_In257469414, ~y~0=~y~0_In257469414} OutVars{~z~0=~z~0_In257469414, ~y~0=~y~0_In257469414} AuxVars[] AssignedVars[] because there is no mapped edge [2020-11-30 02:25:17,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:25:17 BasicIcfg [2020-11-30 02:25:17,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:25:17,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:25:17,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:25:17,561 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:25:17,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:57" (3/4) ... [2020-11-30 02:25:17,564 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:25:17,566 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [301] [301] L1045-2-->L1049-1: Formula: (or (not (= (_ bv1 32) ~y~0_In257469414)) (= ~z~0_In257469414 (_ bv0 32))) InVars {~z~0=~z~0_In257469414, ~y~0=~y~0_In257469414} OutVars{~z~0=~z~0_In257469414, ~y~0=~y~0_In257469414} AuxVars[] AssignedVars[] because there is no mapped edge [2020-11-30 02:25:17,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f5c5e9f-8b98-470e-8eb8-332e8d9cf608/bin/utaipan/witness.graphml [2020-11-30 02:25:17,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:25:17,635 INFO L168 Benchmark]: Toolchain (without parser) took 21941.13 ms. Allocated memory was 52.4 MB in the beginning and 142.6 MB in the end (delta: 90.2 MB). Free memory was 27.9 MB in the beginning and 61.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,635 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:25:17,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.90 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 32.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 65.0 MB. Free memory was 32.7 MB in the beginning and 30.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,637 INFO L168 Benchmark]: Boogie Preprocessor took 40.98 ms. Allocated memory is still 65.0 MB. Free memory was 30.3 MB in the beginning and 28.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:25:17,638 INFO L168 Benchmark]: RCFGBuilder took 958.10 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 51.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,638 INFO L168 Benchmark]: TraceAbstraction took 19812.09 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 51.0 MB in the beginning and 65.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,639 INFO L168 Benchmark]: Witness Printer took 72.37 ms. Allocated memory is still 142.6 MB. Free memory was 65.6 MB in the beginning and 61.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:25:17,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 984.90 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 32.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 65.0 MB. Free memory was 32.7 MB in the beginning and 30.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.98 ms. Allocated memory is still 65.0 MB. Free memory was 30.3 MB in the beginning and 28.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 958.10 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 51.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19812.09 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 51.0 MB in the beginning and 65.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. * Witness Printer took 72.37 ms. Allocated memory is still 142.6 MB. Free memory was 65.6 MB in the beginning and 61.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1289 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 46 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.6s, 328 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.9s, 92 PlacesBefore, 45 PlacesAfterwards, 94 TransitionsBefore, 45 TransitionsAfterwards, 2280 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 6701 MoverChecksTotal - CounterExampleResult [Line: 1049]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={2:0}, i=1, ind=0, j=2, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 366 SDtfs, 523 SDslu, 728 SDs, 0 SdLazy, 383 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 116 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 64 ConstructedInterpolants, 15 QuantifiedInterpolants, 4572 SizeOfPredicates, 22 NumberOfNonLiveVariables, 348 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 proved your program to be incorrect! Received shutdown request...