./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 .................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:22:14,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:22:14,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:22:15,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:22:15,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:22:15,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:22:15,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:22:15,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:22:15,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:22:15,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:22:15,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:22:15,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:22:15,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:22:15,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:22:15,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:22:15,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:22:15,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:22:15,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:22:15,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:22:15,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:22:15,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:22:15,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:22:15,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:22:15,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:22:15,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:22:15,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:22:15,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:22:15,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:22:15,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:22:15,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:22:15,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:22:15,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:22:15,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:22:15,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:22:15,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:22:15,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:22:15,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:22:15,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:22:15,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:22:15,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:22:15,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:22:15,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-21 19:22:15,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:22:15,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:22:15,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:22:15,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:22:15,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:22:15,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:22:15,107 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:22:15,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:22:15,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:22:15,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:22:15,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:22:15,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:22:15,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:22:15,109 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:22:15,109 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:22:15,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:22:15,110 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:22:15,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:22:15,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:22:15,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:22:15,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:22:15,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:22:15,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:22:15,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:22:15,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:22:15,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:22:15,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:22:15,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:22:15,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-21 19:22:15,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:22:15,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:22:15,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:22:15,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:22:15,428 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:22:15,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-21 19:22:15,510 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/223063a0b/8b0afedc264f4a19922b39deaf0de7b9/FLAG8893bfc5f [2021-10-21 19:22:16,089 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:22:16,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-21 19:22:16,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/223063a0b/8b0afedc264f4a19922b39deaf0de7b9/FLAG8893bfc5f [2021-10-21 19:22:16,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/223063a0b/8b0afedc264f4a19922b39deaf0de7b9 [2021-10-21 19:22:16,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:22:16,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:22:16,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:22:16,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:22:16,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:22:16,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:22:16" (1/1) ... [2021-10-21 19:22:16,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c268450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:16, skipping insertion in model container [2021-10-21 19:22:16,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:22:16" (1/1) ... [2021-10-21 19:22:16,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:22:16,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:22:16,844 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-21 19:22:16,867 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:22:16,868 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:22:16,869 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:22:16,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:22:16,900 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 19:22:16,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@319b0d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:16, skipping insertion in model container [2021-10-21 19:22:16,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:22:16,901 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:22:16,903 INFO L168 Benchmark]: Toolchain (without parser) took 561.04 ms. Allocated memory is still 100.7 MB. Free memory was 66.0 MB in the beginning and 72.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:22:16,904 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:22:16,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.13 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 72.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:22:16,906 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 100.7 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 554.13 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 72.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:22:19,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:22:19,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:22:19,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:22:19,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:22:19,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:22:19,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:22:19,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:22:19,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:22:19,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:22:19,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:22:19,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:22:19,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:22:19,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:22:19,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:22:19,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:22:19,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:22:19,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:22:19,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:22:19,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:22:19,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:22:19,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:22:19,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:22:19,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:22:19,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:22:19,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:22:19,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:22:19,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:22:19,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:22:19,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:22:19,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:22:19,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:22:19,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:22:19,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:22:19,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:22:19,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:22:19,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:22:19,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:22:19,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:22:19,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:22:19,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:22:19,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-10-21 19:22:19,391 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:22:19,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:22:19,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:22:19,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:22:19,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:22:19,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:22:19,394 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:22:19,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:22:19,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:22:19,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:22:19,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:22:19,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:22:19,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:22:19,397 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:22:19,397 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:22:19,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:22:19,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:22:19,398 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:22:19,398 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:22:19,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:22:19,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:22:19,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:22:19,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:22:19,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:22:19,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:22:19,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:22:19,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:22:19,400 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:22:19,400 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:22:19,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:22:19,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:22:19,400 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-21 19:22:19,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:22:19,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:22:19,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:22:19,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:22:19,869 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:22:19,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-21 19:22:19,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/9f1fe7924/a48b5482fb444874b0d4a266732363a9/FLAG261325a6a [2021-10-21 19:22:20,638 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:22:20,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-21 19:22:20,658 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/9f1fe7924/a48b5482fb444874b0d4a266732363a9/FLAG261325a6a [2021-10-21 19:22:20,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/data/9f1fe7924/a48b5482fb444874b0d4a266732363a9 [2021-10-21 19:22:20,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:22:20,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:22:20,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:22:20,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:22:20,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:22:20,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:22:20" (1/1) ... [2021-10-21 19:22:20,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b76ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:20, skipping insertion in model container [2021-10-21 19:22:20,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:22:20" (1/1) ... [2021-10-21 19:22:20,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:22:20,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:22:21,400 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-21 19:22:21,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:22:21,494 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:22:21,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:22:21,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-21 19:22:21,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:22:21,557 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:22:21,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-21 19:22:21,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:22:21,676 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:22:21,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21 WrapperNode [2021-10-21 19:22:21,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:22:21,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:22:21,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:22:21,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:22:21,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:22:21,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:22:21,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:22:21,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:22:21,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (1/1) ... [2021-10-21 19:22:21,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:22:21,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:22:21,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:22:21,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:22:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:22:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:22:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:22:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-21 19:22:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:22:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-21 19:22:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-21 19:22:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-21 19:22:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-21 19:22:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-21 19:22:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-21 19:22:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-10-21 19:22:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-21 19:22:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:22:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:22:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-21 19:22:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-21 19:22:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-21 19:22:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-21 19:22:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:22:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:22:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:22:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:22:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:22:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:22:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:22:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:22:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:22:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:22:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:22:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:22:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:22:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:22:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:22:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:22:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:22:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:22:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:22:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:22:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:22:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:22:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:22:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:22:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:22:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:22:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:22:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:22:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:22:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:22:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:22:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:22:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:22:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:22:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:22:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:22:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:22:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:22:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:22:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:22:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:22:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:22:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:22:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:22:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:22:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:22:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:22:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:22:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:22:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:22:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:22:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:22:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:22:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:22:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:22:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:22:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:22:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:22:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:22:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:22:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:22:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-10-21 19:22:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-10-21 19:22:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-10-21 19:22:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-10-21 19:22:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-10-21 19:22:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-10-21 19:22:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-10-21 19:22:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-10-21 19:22:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-10-21 19:22:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-10-21 19:22:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-10-21 19:22:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-10-21 19:22:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-10-21 19:22:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-10-21 19:22:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-10-21 19:22:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-10-21 19:22:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-10-21 19:22:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-10-21 19:22:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-10-21 19:22:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-10-21 19:22:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-10-21 19:22:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-10-21 19:22:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-10-21 19:22:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-10-21 19:22:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-10-21 19:22:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-21 19:22:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-10-21 19:22:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-10-21 19:22:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-10-21 19:22:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-10-21 19:22:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:22:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:22:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-21 19:22:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:22:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:22:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:22:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:22:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:22:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:22:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 19:22:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-21 19:22:23,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:22:23,335 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-21 19:22:23,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:22:23 BoogieIcfgContainer [2021-10-21 19:22:23,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:22:23,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:22:23,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:22:23,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:22:23,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:22:20" (1/3) ... [2021-10-21 19:22:23,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f069cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:22:23, skipping insertion in model container [2021-10-21 19:22:23,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:22:21" (2/3) ... [2021-10-21 19:22:23,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f069cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:22:23, skipping insertion in model container [2021-10-21 19:22:23,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:22:23" (3/3) ... [2021-10-21 19:22:23,348 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-10-21 19:22:23,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:22:23,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-21 19:22:23,412 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:22:23,421 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:22:23,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-21 19:22:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-10-21 19:22:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:22:23,478 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:23,478 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:23,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:23,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:23,485 INFO L82 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-10-21 19:22:23,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:23,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462441778] [2021-10-21 19:22:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:23,524 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:23,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:23,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:23,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:22:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:23,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:22:23,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:23,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:23,926 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:23,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462441778] [2021-10-21 19:22:23,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462441778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:23,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:23,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:22:23,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292282884] [2021-10-21 19:22:23,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:22:23,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:23,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:22:23,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:22:23,955 INFO L87 Difference]: Start difference. First operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:24,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:24,014 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-10-21 19:22:24,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:22:24,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:22:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:24,031 INFO L225 Difference]: With dead ends: 236 [2021-10-21 19:22:24,032 INFO L226 Difference]: Without dead ends: 233 [2021-10-21 19:22:24,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:22:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-21 19:22:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-21 19:22:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 206 states have internal predecessors, (209), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:22:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-10-21 19:22:24,114 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-10-21 19:22:24,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:24,115 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-10-21 19:22:24,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:24,115 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-10-21 19:22:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:22:24,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:24,116 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:24,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:24,327 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:24,328 INFO L82 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-10-21 19:22:24,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:24,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357683417] [2021-10-21 19:22:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:24,329 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:24,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:24,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:24,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:22:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:24,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:22:24,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:24,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:22:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:24,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:24,651 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:24,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357683417] [2021-10-21 19:22:24,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357683417] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:24,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:24,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:22:24,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769458683] [2021-10-21 19:22:24,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:22:24,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:22:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:22:24,655 INFO L87 Difference]: Start difference. First operand 233 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:24,886 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-10-21 19:22:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:22:24,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:22:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:24,889 INFO L225 Difference]: With dead ends: 230 [2021-10-21 19:22:24,889 INFO L226 Difference]: Without dead ends: 230 [2021-10-21 19:22:24,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:22:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-21 19:22:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-10-21 19:22:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.73109243697479) internal successors, (206), 203 states have internal predecessors, (206), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:22:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-10-21 19:22:24,904 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-10-21 19:22:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:24,905 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-10-21 19:22:24,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:24,905 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-10-21 19:22:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:22:24,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:24,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:24,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:25,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:25,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:25,117 INFO L82 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-10-21 19:22:25,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:25,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313320161] [2021-10-21 19:22:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:25,118 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:25,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:25,120 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:25,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:22:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:25,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:22:25,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:25,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:22:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:25,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:25,557 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:25,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313320161] [2021-10-21 19:22:25,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313320161] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:25,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:25,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-21 19:22:25,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503306636] [2021-10-21 19:22:25,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:22:25,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:22:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:25,565 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:26,027 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-10-21 19:22:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:22:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:22:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:26,030 INFO L225 Difference]: With dead ends: 227 [2021-10-21 19:22:26,030 INFO L226 Difference]: Without dead ends: 227 [2021-10-21 19:22:26,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-21 19:22:26,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-21 19:22:26,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 200 states have internal predecessors, (203), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:22:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-10-21 19:22:26,044 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-10-21 19:22:26,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:26,044 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-10-21 19:22:26,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:22:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-10-21 19:22:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:22:26,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:26,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:26,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:26,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:26,257 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:26,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:26,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-10-21 19:22:26,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:26,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997334693] [2021-10-21 19:22:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:26,258 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:26,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:26,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:22:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:26,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:22:26,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:26,606 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:22:26,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:22:26,924 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-21 19:22:26,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 27 [2021-10-21 19:22:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:27,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:41,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:41,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997334693] [2021-10-21 19:22:41,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997334693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:41,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:41,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:22:41,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946949962] [2021-10-21 19:22:41,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:22:41,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:41,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:22:41,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2021-10-21 19:22:41,622 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:22:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:43,116 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-10-21 19:22:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:22:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:22:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:43,119 INFO L225 Difference]: With dead ends: 253 [2021-10-21 19:22:43,119 INFO L226 Difference]: Without dead ends: 253 [2021-10-21 19:22:43,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 14418.6ms TimeCoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2021-10-21 19:22:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-21 19:22:43,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2021-10-21 19:22:43,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 124 states have (on average 1.6774193548387097) internal successors, (208), 203 states have internal predecessors, (208), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-21 19:22:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 256 transitions. [2021-10-21 19:22:43,133 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 256 transitions. Word has length 13 [2021-10-21 19:22:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:43,134 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 256 transitions. [2021-10-21 19:22:43,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:22:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 256 transitions. [2021-10-21 19:22:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:22:43,135 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:43,135 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:43,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:43,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:43,348 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:43,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-10-21 19:22:43,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:43,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453088114] [2021-10-21 19:22:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:43,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:43,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:43,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:22:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:43,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:22:43,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:43,696 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:22:43,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-21 19:22:43,773 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:22:43,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-21 19:22:44,243 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:22:44,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 51 [2021-10-21 19:22:44,281 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-21 19:22:44,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 64 [2021-10-21 19:22:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:45,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:50,013 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:50,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453088114] [2021-10-21 19:22:50,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453088114] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:50,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:50,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-21 19:22:50,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205780988] [2021-10-21 19:22:50,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:22:50,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:50,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:22:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-21 19:22:50,016 INFO L87 Difference]: Start difference. First operand 232 states and 256 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:22:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:52,514 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2021-10-21 19:22:52,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:22:52,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:22:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:52,518 INFO L225 Difference]: With dead ends: 249 [2021-10-21 19:22:52,518 INFO L226 Difference]: Without dead ends: 249 [2021-10-21 19:22:52,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4825.0ms TimeCoverageRelationStatistics Valid=59, Invalid=122, Unknown=1, NotChecked=0, Total=182 [2021-10-21 19:22:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-21 19:22:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-10-21 19:22:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 200 states have internal predecessors, (203), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-21 19:22:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 251 transitions. [2021-10-21 19:22:52,529 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 251 transitions. Word has length 13 [2021-10-21 19:22:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:52,530 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 251 transitions. [2021-10-21 19:22:52,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:22:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 251 transitions. [2021-10-21 19:22:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:22:52,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:52,531 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:52,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:52,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:52,739 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:22:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:52,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-10-21 19:22:52,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:52,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694531551] [2021-10-21 19:22:52,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:52,740 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:52,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:52,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:52,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:22:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:52,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-21 19:22:52,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:53,059 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:22:53,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:22:53,349 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:22:53,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-10-21 19:22:53,452 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:22:53,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-21 19:22:53,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-21 19:22:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:53,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:53,708 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-21 19:22:53,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-21 19:22:55,789 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)) is different from false [2021-10-21 19:23:05,974 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-21 19:23:08,025 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-21 19:23:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:23:08,222 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:23:08,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694531551] [2021-10-21 19:23:08,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694531551] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:23:08,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:23:08,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-21 19:23:08,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758330861] [2021-10-21 19:23:08,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:23:08,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:23:08,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:23:08,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=88, Unknown=6, NotChecked=60, Total=182 [2021-10-21 19:23:08,224 INFO L87 Difference]: Start difference. First operand 229 states and 251 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:23:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:23:16,001 INFO L93 Difference]: Finished difference Result 252 states and 276 transitions. [2021-10-21 19:23:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:23:16,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:23:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:23:16,003 INFO L225 Difference]: With dead ends: 252 [2021-10-21 19:23:16,004 INFO L226 Difference]: Without dead ends: 252 [2021-10-21 19:23:16,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 20555.9ms TimeCoverageRelationStatistics Valid=85, Invalid=262, Unknown=7, NotChecked=108, Total=462 [2021-10-21 19:23:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-21 19:23:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-10-21 19:23:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.637037037037037) internal successors, (221), 211 states have internal predecessors, (221), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:23:16,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-10-21 19:23:16,015 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 16 [2021-10-21 19:23:16,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:23:16,015 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-10-21 19:23:16,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:23:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-10-21 19:23:16,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:23:16,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:23:16,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:23:16,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-21 19:23:16,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:23:16,234 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:23:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:23:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-10-21 19:23:16,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:23:16,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147672933] [2021-10-21 19:23:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:23:16,235 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:23:16,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:23:16,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:23:16,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:23:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:23:16,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:23:16,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:23:16,661 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:23:16,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-21 19:23:16,713 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:23:16,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-21 19:23:17,303 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-21 19:23:17,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 65 [2021-10-21 19:23:17,346 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:23:17,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 67 [2021-10-21 19:23:17,590 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:23:17,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-21 19:23:17,641 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:23:17,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-21 19:23:17,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-21 19:23:17,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-21 19:23:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:23:17,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:23:58,828 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) is different from false [2021-10-21 19:24:00,969 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))) is different from false [2021-10-21 19:24:03,116 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))))) is different from false [2021-10-21 19:24:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:03,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:03,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147672933] [2021-10-21 19:24:03,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147672933] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:03,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:03,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 12] imperfect sequences [] total 20 [2021-10-21 19:24:03,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251573658] [2021-10-21 19:24:03,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-21 19:24:03,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:03,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-21 19:24:03,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=254, Unknown=13, NotChecked=102, Total=420 [2021-10-21 19:24:03,552 INFO L87 Difference]: Start difference. First operand 244 states and 275 transitions. Second operand has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:24:05,700 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (let ((.cse0 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse0) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse0) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse1 (_ bv4 32)) (bvadd .cse1 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse2 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse3 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse4 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse2 v_DerPreprocessor_10) .cse3 v_DerPreprocessor_11) .cse4 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse2 v_DerPreprocessor_6) .cse3 v_DerPreprocessor_7) .cse4 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20))))))))))))) is different from false [2021-10-21 19:24:07,763 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|))))) is different from false [2021-10-21 19:24:16,081 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse5 (bvadd .cse4 (_ bv8 32)))) (and (exists ((gl_insert_~node~1.base (_ BitVec 32))) (= (select |c_#length| gl_insert_~node~1.base) (_ bv20 32))) (= (_ bv8 32) (select |c_#length| |c___list_add_#in~next.base|)) (= (_ bv0 32) |c___list_add_#in~next.offset|) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20))))))) (= c___list_add_~next.offset (_ bv0 32)) (= (_ bv8 32) (select |c_#length| c___list_add_~next.base)) (bvule (bvadd (_ bv4 32) .cse4) .cse5) (bvule .cse5 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) is different from false [2021-10-21 19:24:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:26,912 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2021-10-21 19:24:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:24:26,916 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:24:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:26,918 INFO L225 Difference]: With dead ends: 251 [2021-10-21 19:24:26,918 INFO L226 Difference]: Without dead ends: 251 [2021-10-21 19:24:26,919 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 55632.2ms TimeCoverageRelationStatistics Valid=117, Invalid=441, Unknown=18, NotChecked=294, Total=870 [2021-10-21 19:24:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-21 19:24:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2021-10-21 19:24:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.6296296296296295) internal successors, (220), 211 states have internal predecessors, (220), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2021-10-21 19:24:26,929 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 16 [2021-10-21 19:24:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:26,930 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2021-10-21 19:24:26,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:24:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2021-10-21 19:24:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:24:26,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:26,931 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:26,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:27,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:27,144 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-10-21 19:24:27,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:27,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045045394] [2021-10-21 19:24:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:27,145 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:27,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:27,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:27,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:24:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:27,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:24:27,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:27,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:24:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:27,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:27,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:27,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045045394] [2021-10-21 19:24:27,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045045394] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:27,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:27,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-21 19:24:27,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089137888] [2021-10-21 19:24:27,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:24:27,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:27,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:24:27,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:24:27,627 INFO L87 Difference]: Start difference. First operand 244 states and 274 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:28,574 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2021-10-21 19:24:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:24:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:24:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:28,578 INFO L225 Difference]: With dead ends: 256 [2021-10-21 19:24:28,578 INFO L226 Difference]: Without dead ends: 256 [2021-10-21 19:24:28,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 108.8ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:24:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-21 19:24:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2021-10-21 19:24:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.624113475177305) internal successors, (229), 216 states have internal predecessors, (229), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2021-10-21 19:24:28,591 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 17 [2021-10-21 19:24:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:28,591 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2021-10-21 19:24:28,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2021-10-21 19:24:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:24:28,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:28,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:28,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-21 19:24:28,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:28,799 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-10-21 19:24:28,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:28,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579928448] [2021-10-21 19:24:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:28,800 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:28,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:28,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:28,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:24:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:29,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:24:29,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:29,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:24:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:29,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:29,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:29,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579928448] [2021-10-21 19:24:29,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579928448] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:29,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:29,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-21 19:24:29,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818548384] [2021-10-21 19:24:29,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:24:29,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:24:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:24:29,717 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:31,764 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-21 19:24:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:24:31,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:24:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:31,767 INFO L225 Difference]: With dead ends: 254 [2021-10-21 19:24:31,767 INFO L226 Difference]: Without dead ends: 254 [2021-10-21 19:24:31,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 452.2ms TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:24:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-21 19:24:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-10-21 19:24:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 216 states have internal predecessors, (225), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:31,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2021-10-21 19:24:31,778 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 17 [2021-10-21 19:24:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:31,779 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2021-10-21 19:24:31,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2021-10-21 19:24:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:24:31,780 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:31,780 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:31,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:31,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:31,986 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-10-21 19:24:31,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:31,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504851344] [2021-10-21 19:24:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:31,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:31,987 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:31,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:24:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:32,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:24:32,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:32,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:32,452 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:32,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504851344] [2021-10-21 19:24:32,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504851344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:32,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:32,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:24:32,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692330717] [2021-10-21 19:24:32,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:24:32,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:24:32,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:24:32,454 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:33,052 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-10-21 19:24:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:24:33,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-21 19:24:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:33,056 INFO L225 Difference]: With dead ends: 249 [2021-10-21 19:24:33,056 INFO L226 Difference]: Without dead ends: 249 [2021-10-21 19:24:33,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:24:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-21 19:24:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-10-21 19:24:33,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 141 states have (on average 1.574468085106383) internal successors, (222), 215 states have internal predecessors, (222), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 276 transitions. [2021-10-21 19:24:33,066 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 276 transitions. Word has length 19 [2021-10-21 19:24:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:33,067 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 276 transitions. [2021-10-21 19:24:33,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:24:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 276 transitions. [2021-10-21 19:24:33,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:24:33,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:33,068 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:33,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:33,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:33,281 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:33,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:33,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-10-21 19:24:33,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:33,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384266900] [2021-10-21 19:24:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:33,282 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:33,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:33,283 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:33,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-21 19:24:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:33,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:24:33,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:33,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:34,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:24:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:34,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:34,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384266900] [2021-10-21 19:24:34,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384266900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:34,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:34,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-21 19:24:34,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575506978] [2021-10-21 19:24:34,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:24:34,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:24:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:24:34,433 INFO L87 Difference]: Start difference. First operand 249 states and 276 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:24:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:36,023 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2021-10-21 19:24:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:24:36,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-21 19:24:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:36,029 INFO L225 Difference]: With dead ends: 250 [2021-10-21 19:24:36,029 INFO L226 Difference]: Without dead ends: 250 [2021-10-21 19:24:36,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 886.4ms TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:24:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-21 19:24:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-21 19:24:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 141 states have (on average 1.553191489361702) internal successors, (219), 214 states have internal predecessors, (219), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 273 transitions. [2021-10-21 19:24:36,040 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 273 transitions. Word has length 19 [2021-10-21 19:24:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:36,041 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 273 transitions. [2021-10-21 19:24:36,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:24:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 273 transitions. [2021-10-21 19:24:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:24:36,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:36,043 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:36,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:36,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:36,256 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:36,257 INFO L82 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-10-21 19:24:36,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:36,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924335491] [2021-10-21 19:24:36,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:36,257 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:36,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:36,258 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:36,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-21 19:24:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:36,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:24:36,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:36,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:36,914 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:36,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924335491] [2021-10-21 19:24:36,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924335491] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:36,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:36,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:24:36,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337176410] [2021-10-21 19:24:36,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:24:36,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:24:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:24:36,915 INFO L87 Difference]: Start difference. First operand 248 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-21 19:24:37,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:37,206 INFO L93 Difference]: Finished difference Result 247 states and 271 transitions. [2021-10-21 19:24:37,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:24:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2021-10-21 19:24:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:37,208 INFO L225 Difference]: With dead ends: 247 [2021-10-21 19:24:37,208 INFO L226 Difference]: Without dead ends: 247 [2021-10-21 19:24:37,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:24:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-21 19:24:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-10-21 19:24:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 141 states have (on average 1.5460992907801419) internal successors, (218), 213 states have internal predecessors, (218), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2021-10-21 19:24:37,218 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 38 [2021-10-21 19:24:37,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:37,219 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2021-10-21 19:24:37,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-21 19:24:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2021-10-21 19:24:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:24:37,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:37,221 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:37,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:37,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,433 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-10-21 19:24:37,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:37,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407170051] [2021-10-21 19:24:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:37,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:37,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:37,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-21 19:24:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:37,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:24:37,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:38,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:38,464 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 19:24:38,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:24:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:38,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:38,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407170051] [2021-10-21 19:24:38,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407170051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:38,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:38,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-21 19:24:38,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642932664] [2021-10-21 19:24:38,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:24:38,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:38,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:24:38,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:24:38,497 INFO L87 Difference]: Start difference. First operand 247 states and 271 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:24:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:39,692 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2021-10-21 19:24:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:24:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2021-10-21 19:24:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:39,695 INFO L225 Difference]: With dead ends: 242 [2021-10-21 19:24:39,695 INFO L226 Difference]: Without dead ends: 242 [2021-10-21 19:24:39,695 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 206.7ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:24:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-21 19:24:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-21 19:24:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 141 states have (on average 1.5106382978723405) internal successors, (213), 208 states have internal predecessors, (213), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-10-21 19:24:39,706 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 38 [2021-10-21 19:24:39,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:39,706 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-10-21 19:24:39,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:24:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-10-21 19:24:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:24:39,708 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:39,708 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:39,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-21 19:24:39,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:39,924 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:39,925 INFO L82 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-10-21 19:24:39,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:39,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088449435] [2021-10-21 19:24:39,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:39,926 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:39,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:39,927 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:39,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-21 19:24:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:40,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:24:40,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:40,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:41,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:24:41,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:24:41,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-10-21 19:24:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:41,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:41,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088449435] [2021-10-21 19:24:41,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088449435] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:41,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:41,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-21 19:24:41,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077267242] [2021-10-21 19:24:41,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:24:41,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:41,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:24:41,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:24:41,927 INFO L87 Difference]: Start difference. First operand 242 states and 266 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:24:45,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:45,202 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-10-21 19:24:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:24:45,203 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-10-21 19:24:45,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:45,205 INFO L225 Difference]: With dead ends: 240 [2021-10-21 19:24:45,205 INFO L226 Difference]: Without dead ends: 240 [2021-10-21 19:24:45,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 826.6ms TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:24:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-21 19:24:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-10-21 19:24:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 141 states have (on average 1.49645390070922) internal successors, (211), 206 states have internal predecessors, (211), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:24:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 264 transitions. [2021-10-21 19:24:45,215 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 264 transitions. Word has length 38 [2021-10-21 19:24:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:45,215 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 264 transitions. [2021-10-21 19:24:45,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:24:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 264 transitions. [2021-10-21 19:24:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 19:24:45,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:45,217 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:45,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:45,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:45,430 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:24:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:45,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-10-21 19:24:45,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:45,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828111783] [2021-10-21 19:24:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:45,431 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:45,432 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:45,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-21 19:24:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:45,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:24:45,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:46,001 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:24:46,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:24:46,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:24:46,250 INFO L388 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-21 19:24:46,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:24:46,808 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-21 19:24:46,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:24:46,921 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-21 19:24:46,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 36 [2021-10-21 19:24:51,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:24:51,083 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-21 19:24:51,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 33 [2021-10-21 19:24:51,377 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-21 19:24:51,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2021-10-21 19:24:51,777 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-21 19:24:51,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 55 [2021-10-21 19:24:52,346 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-21 19:24:52,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-21 19:24:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:52,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:25:05,916 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_42 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_42))))) is different from false [2021-10-21 19:25:06,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:25:06,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828111783] [2021-10-21 19:25:06,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:25:06,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1894420169] [2021-10-21 19:25:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:06,549 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:25:06,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:25:06,550 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:25:06,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-21 19:25:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:07,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-21 19:25:07,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:25:07,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-10-21 19:25:07,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:25:08,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:25:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:25:09,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:25:09,433 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-21 19:25:09,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 35 [2021-10-21 19:25:10,080 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-21 19:25:10,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 40 [2021-10-21 19:25:10,695 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-21 19:25:10,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 57 [2021-10-21 19:25:11,602 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-21 19:25:11,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 54 [2021-10-21 19:25:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:25:14,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:25:22,091 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:25:22,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 14942 treesize of output 14540 [2021-10-21 19:25:22,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:25:22,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897852825] [2021-10-21 19:25:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:22,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:25:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:25:22,721 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:25:22,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 19:25:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:23,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:25:23,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:25:23,365 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:25:23,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:25:23,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-21 19:25:23,609 INFO L388 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-21 19:25:23,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:25:23,951 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-21 19:25:23,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:25:24,024 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-21 19:25:24,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 36 [2021-10-21 19:25:24,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:25:24,138 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-21 19:25:24,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 33 [2021-10-21 19:25:24,353 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-21 19:25:24,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 58 [2021-10-21 19:25:24,651 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-21 19:25:24,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 55 [2021-10-21 19:25:24,892 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-21 19:25:24,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-21 19:25:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:25:25,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:25:35,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_52 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~1.base_52)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_52 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) (_ bv1 1))))) is different from false [2021-10-21 19:25:35,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:25:35,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:25:35,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 19:25:35,726 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 19:25:35,726 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 19:25:35,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION [2021-10-21 19:25:35,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION [2021-10-21 19:25:35,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION [2021-10-21 19:25:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION [2021-10-21 19:25:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION [2021-10-21 19:25:35,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-21 19:25:35,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-21 19:25:35,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-21 19:25:35,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:25:35,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:25:35,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-21 19:25:35,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-21 19:25:35,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-21 19:25:35,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-21 19:25:35,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-21 19:25:35,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:25:35,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:25:36,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:25:36,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt [2021-10-21 19:25:36,371 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:25:36,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:25:36 BoogieIcfgContainer [2021-10-21 19:25:36,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:25:36,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:25:36,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:25:36,389 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:25:36,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:22:23" (3/4) ... [2021-10-21 19:25:36,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:25:36,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:25:36,395 INFO L168 Benchmark]: Toolchain (without parser) took 195549.79 ms. Allocated memory was 73.4 MB in the beginning and 144.7 MB in the end (delta: 71.3 MB). Free memory was 52.4 MB in the beginning and 104.0 MB in the end (delta: -51.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:36,396 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 54.0 MB in the beginning and 54.0 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:36,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.88 ms. Allocated memory is still 73.4 MB. Free memory was 52.1 MB in the beginning and 31.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:36,396 INFO L168 Benchmark]: Boogie Preprocessor took 133.87 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 52.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:36,397 INFO L168 Benchmark]: RCFGBuilder took 1525.56 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.1 MB in the beginning and 43.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:36,397 INFO L168 Benchmark]: TraceAbstraction took 193048.16 ms. Allocated memory was 88.1 MB in the beginning and 144.7 MB in the end (delta: 56.6 MB). Free memory was 43.0 MB in the beginning and 105.0 MB in the end (delta: -62.1 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:36,397 INFO L168 Benchmark]: Witness Printer took 6.04 ms. Allocated memory is still 144.7 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:36,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory was 54.0 MB in the beginning and 54.0 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 830.88 ms. Allocated memory is still 73.4 MB. Free memory was 52.1 MB in the beginning and 31.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 133.87 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 52.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1525.56 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.1 MB in the beginning and 43.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 193048.16 ms. Allocated memory was 88.1 MB in the beginning and 144.7 MB in the end (delta: 56.6 MB). Free memory was 43.0 MB in the beginning and 105.0 MB in the end (delta: -62.1 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.04 ms. Allocated memory is still 144.7 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->next = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 255 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 192959.3ms, OverallIterations: 15, TraceHistogramMax: 2, EmptinessCheckTime: 43.2ms, AutomataDifference: 45926.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2944 SDtfs, 3828 SDslu, 9795 SDs, 0 SdLazy, 5275 SolverSat, 616 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24072.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 405 SyntacticMatches, 32 SemanticMatches, 151 ConstructedPredicates, 9 IntricatePredicates, 1 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 98067.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 211.7ms AutomataMinimizationTime, 14 MinimizatonAttempts, 68 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 176.7ms SsaConstructionTime, 791.5ms SatisfiabilityAnalysisTime, 88871.7ms InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 520 ConstructedInterpolants, 51 QuantifiedInterpolants, 5449 SizeOfPredicates, 118 NumberOfNonLiveVariables, 1994 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:25:36,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc0b2184-a244-453b-9a96-a1b71f0435b9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...