./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 f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:15,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:15,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:15,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:15,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:15,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:15,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:15,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:15,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:15,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:15,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:15,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:15,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:15,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:15,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:15,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:15,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:15,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:15,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:15,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:15,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:15,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:15,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:15,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:15,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:15,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:15,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:15,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:15,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:15,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:15,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:15,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:15,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:15,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:15,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:15,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:15,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:15,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:15,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:15,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:15,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:15,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-11-09 09:09:15,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:15,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:15,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:15,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:15,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:15,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:15,194 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:15,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:15,194 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:09:15,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:09:15,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:09:15,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:09:15,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:15,196 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-09 09:09:15,196 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-09 09:09:15,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:09:15,196 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-09 09:09:15,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:09:15,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:15,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:15,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:15,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:09:15,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:15,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:15,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:09:15,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:09:15,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:09:15,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:15,199 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-09 09:09:15,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:15,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:15,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:15,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:15,517 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:15,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-09 09:09:15,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/86b4b7916/eff931e9cc7a4b539df708fdc2196ac8/FLAG9f39824c7 [2021-11-09 09:09:16,212 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:16,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-09 09:09:16,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/86b4b7916/eff931e9cc7a4b539df708fdc2196ac8/FLAG9f39824c7 [2021-11-09 09:09:16,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/86b4b7916/eff931e9cc7a4b539df708fdc2196ac8 [2021-11-09 09:09:16,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:16,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-09 09:09:16,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:16,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:16,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:16,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:16" (1/1) ... [2021-11-09 09:09:16,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1dd62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:16, skipping insertion in model container [2021-11-09 09:09:16,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:16" (1/1) ... [2021-11-09 09:09:16,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:16,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:16,958 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-09 09:09:16,975 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-09 09:09:16,976 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-09 09:09:16,977 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-09 09:09:17,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:17,016 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) [2021-11-09 09:09:17,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2395e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:17, skipping insertion in model container [2021-11-09 09:09:17,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:17,017 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-09 09:09:17,020 INFO L168 Benchmark]: Toolchain (without parser) took 555.57 ms. Allocated memory is still 107.0 MB. Free memory was 69.2 MB in the beginning and 77.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:17,021 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 107.0 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:17,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.68 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 77.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:17,024 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 107.0 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 552.68 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 77.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:19,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:19,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:19,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:19,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:19,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:19,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:19,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:19,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:19,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:19,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:19,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:19,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:19,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:19,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:19,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:19,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:19,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:19,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:19,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:19,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:19,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:19,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:19,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:19,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:19,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:19,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:19,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:19,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:19,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:19,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:19,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:19,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:19,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:19,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:19,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:19,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:19,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:19,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:19,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:19,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:19,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-11-09 09:09:19,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:19,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:19,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:19,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:19,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:19,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:19,596 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:19,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:19,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:09:19,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:09:19,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:09:19,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:09:19,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:19,599 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-09 09:09:19,599 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-09 09:09:19,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:09:19,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-09 09:09:19,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 09:09:19,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 09:09:19,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:09:19,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:19,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:19,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:19,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:09:19,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:19,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:19,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:09:19,602 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 09:09:19,602 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 09:09:19,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:19,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 09:09:19,603 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-09 09:09:20,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:20,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:20,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:20,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:20,041 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:20,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-09 09:09:20,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/fbace9d85/b16d9711a21040e5a0538620a7b78844/FLAG07f3d8d88 [2021-11-09 09:09:20,869 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:20,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-09 09:09:20,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/fbace9d85/b16d9711a21040e5a0538620a7b78844/FLAG07f3d8d88 [2021-11-09 09:09:21,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/data/fbace9d85/b16d9711a21040e5a0538620a7b78844 [2021-11-09 09:09:21,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:21,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-09 09:09:21,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:21,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:21,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:21,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:21,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bde2745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21, skipping insertion in model container [2021-11-09 09:09:21,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:21,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:21,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:21,626 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-09 09:09:21,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:21,690 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-09 09:09:21,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:21,738 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-09 09:09:21,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:21,807 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:09:21,876 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_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-09 09:09:21,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:21,986 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:09:21,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21 WrapperNode [2021-11-09 09:09:21,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:21,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:09:21,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:09:21,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:09:22,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:09:22,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:09:22,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:09:22,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:09:22,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (1/1) ... [2021-11-09 09:09:22,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:22,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:22,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:22,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:09:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-09 09:09:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:09:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-09 09:09:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-11-09 09:09:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-09 09:09:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-11-09 09:09:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-11-09 09:09:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-11-09 09:09:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-11-09 09:09:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-09 09:09:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-11-09 09:09:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-11-09 09:09:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-09 09:09:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-09 09:09:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-09 09:09:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-09 09:09:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-09 09:09:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-09 09:09:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-09 09:09:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-09 09:09:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-09 09:09:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-09 09:09:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-09 09:09:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-09 09:09:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-09 09:09:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-09 09:09:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-09 09:09:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-09 09:09:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-09 09:09:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-09 09:09:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-09 09:09:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-09 09:09:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-09 09:09:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-09 09:09:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-09 09:09:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-09 09:09:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-09 09:09:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-09 09:09:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-09 09:09:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-09 09:09:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-09 09:09:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-09 09:09:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-09 09:09:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-09 09:09:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-09 09:09:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-11-09 09:09:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-09 09:09:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-09 09:09:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-09 09:09:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-09 09:09:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-09 09:09:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-09 09:09:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-09 09:09:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-09 09:09:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-09 09:09:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-09 09:09:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-09 09:09:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-09 09:09:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-09 09:09:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-09 09:09:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-09 09:09:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-09 09:09:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-09 09:09:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-09 09:09:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-09 09:09:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-11-09 09:09:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-11-09 09:09:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-11-09 09:09:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-11-09 09:09:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-11-09 09:09:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-11-09 09:09:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-11-09 09:09:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-11-09 09:09:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-11-09 09:09:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-11-09 09:09:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-11-09 09:09:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-11-09 09:09:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-11-09 09:09:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-11-09 09:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-11-09 09:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-11-09 09:09:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-11-09 09:09:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-11-09 09:09:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-09 09:09:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:09:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-09 09:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-09 09:09:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 09:09:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 09:09:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:09:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-09 09:09:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-09 09:09:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-09 09:09:23,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:09:23,660 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-11-09 09:09:23,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:23 BoogieIcfgContainer [2021-11-09 09:09:23,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:09:23,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:09:23,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:09:23,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:09:23,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:09:21" (1/3) ... [2021-11-09 09:09:23,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bac87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:23, skipping insertion in model container [2021-11-09 09:09:23,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:21" (2/3) ... [2021-11-09 09:09:23,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bac87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:23, skipping insertion in model container [2021-11-09 09:09:23,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:23" (3/3) ... [2021-11-09 09:09:23,672 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-11-09 09:09:23,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:09:23,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-09 09:09:23,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:09:23,753 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 [2021-11-09 09:09:23,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-09 09:09:23,799 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) [2021-11-09 09:09:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 09:09:23,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:23,809 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:23,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:23,816 INFO L85 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-11-09 09:09:23,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:23,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111048113] [2021-11-09 09:09:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:23,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:23,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:23,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:23,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 09:09:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:24,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 09:09:24,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:24,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:24,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:24,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111048113] [2021-11-09 09:09:24,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111048113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:24,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:24,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 09:09:24,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337850642] [2021-11-09 09:09:24,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:09:24,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:09:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:24,287 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) [2021-11-09 09:09:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:24,362 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-11-09 09:09:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:09:24,364 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 [2021-11-09 09:09:24,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:24,383 INFO L225 Difference]: With dead ends: 236 [2021-11-09 09:09:24,384 INFO L226 Difference]: Without dead ends: 233 [2021-11-09 09:09:24,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-09 09:09:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-11-09 09:09:24,467 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) [2021-11-09 09:09:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-11-09 09:09:24,484 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-11-09 09:09:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:24,485 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-11-09 09:09:24,485 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) [2021-11-09 09:09:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-11-09 09:09:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 09:09:24,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:24,487 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:24,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:24,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:24,699 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:24,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-11-09 09:09:24,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:24,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769302596] [2021-11-09 09:09:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:24,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:24,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:24,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:24,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 09:09:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:24,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:24,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:25,064 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 [2021-11-09 09:09:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:25,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:25,163 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:25,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769302596] [2021-11-09 09:09:25,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769302596] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:25,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:25,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 09:09:25,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68296561] [2021-11-09 09:09:25,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:09:25,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:25,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:09:25,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:09:25,166 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) [2021-11-09 09:09:25,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:25,446 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-11-09 09:09:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:09:25,447 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 [2021-11-09 09:09:25,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:25,449 INFO L225 Difference]: With dead ends: 230 [2021-11-09 09:09:25,449 INFO L226 Difference]: Without dead ends: 230 [2021-11-09 09:09:25,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:09:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-09 09:09:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-09 09:09:25,474 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) [2021-11-09 09:09:25,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-11-09 09:09:25,477 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-11-09 09:09:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:25,478 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-11-09 09:09:25,478 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) [2021-11-09 09:09:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-11-09 09:09:25,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 09:09:25,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:25,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:25,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:25,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:25,692 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:25,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-11-09 09:09:25,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:25,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376368572] [2021-11-09 09:09:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:25,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:25,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:25,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:25,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-09 09:09:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:25,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 09:09:25,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:25,954 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 [2021-11-09 09:09:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:25,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:26,104 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:26,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376368572] [2021-11-09 09:09:26,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376368572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:26,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:26,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-09 09:09:26,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130036164] [2021-11-09 09:09:26,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:09:26,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:09:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:09:26,114 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) [2021-11-09 09:09:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:26,666 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-11-09 09:09:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:09:26,667 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 [2021-11-09 09:09:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:26,669 INFO L225 Difference]: With dead ends: 227 [2021-11-09 09:09:26,669 INFO L226 Difference]: Without dead ends: 227 [2021-11-09 09:09:26,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:09:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-09 09:09:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-09 09:09:26,680 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) [2021-11-09 09:09:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-11-09 09:09:26,682 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-11-09 09:09:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:26,682 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-11-09 09:09:26,682 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) [2021-11-09 09:09:26,682 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-11-09 09:09:26,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 09:09:26,683 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:26,688 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:26,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:26,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:26,905 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-11-09 09:09:26,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:26,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594647445] [2021-11-09 09:09:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:26,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:26,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:26,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-09 09:09:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:27,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 09:09:27,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:27,234 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:09:27,235 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 [2021-11-09 09:09:27,568 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-09 09:09:27,568 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 [2021-11-09 09:09:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:27,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:42,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:42,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594647445] [2021-11-09 09:09:42,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594647445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:42,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:42,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-09 09:09:42,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085655668] [2021-11-09 09:09:42,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:42,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:42,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-09 09:09:42,263 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) [2021-11-09 09:09:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:43,729 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-11-09 09:09:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:09:43,730 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 [2021-11-09 09:09:43,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:43,731 INFO L225 Difference]: With dead ends: 253 [2021-11-09 09:09:43,732 INFO L226 Difference]: Without dead ends: 253 [2021-11-09 09:09:43,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=45, Invalid=84, Unknown=3, NotChecked=0, Total=132 [2021-11-09 09:09:43,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-09 09:09:43,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2021-11-09 09:09:43,751 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) [2021-11-09 09:09:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 256 transitions. [2021-11-09 09:09:43,753 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 256 transitions. Word has length 13 [2021-11-09 09:09:43,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:43,754 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 256 transitions. [2021-11-09 09:09:43,754 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) [2021-11-09 09:09:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 256 transitions. [2021-11-09 09:09:43,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 09:09:43,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:43,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:43,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:43,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:43,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-11-09 09:09:43,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:43,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042602772] [2021-11-09 09:09:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:43,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:43,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:43,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-09 09:09:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:44,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 09:09:44,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:44,263 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-09 09:09:44,264 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 [2021-11-09 09:09:44,332 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:09:44,333 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 [2021-11-09 09:09:44,868 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-09 09:09:44,869 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 [2021-11-09 09:09:44,902 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-09 09:09:44,903 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 [2021-11-09 09:09:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:45,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:54,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:54,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042602772] [2021-11-09 09:09:54,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042602772] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:54,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:54,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-09 09:09:54,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135165863] [2021-11-09 09:09:54,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 09:09:54,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 09:09:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-11-09 09:09:54,107 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) [2021-11-09 09:09:56,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:56,832 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2021-11-09 09:09:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:09:56,833 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 [2021-11-09 09:09:56,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:56,836 INFO L225 Difference]: With dead ends: 249 [2021-11-09 09:09:56,836 INFO L226 Difference]: Without dead ends: 249 [2021-11-09 09:09:56,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=59, Invalid=122, Unknown=1, NotChecked=0, Total=182 [2021-11-09 09:09:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-09 09:09:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-11-09 09:09:56,847 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) [2021-11-09 09:09:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 251 transitions. [2021-11-09 09:09:56,850 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 251 transitions. Word has length 13 [2021-11-09 09:09:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:56,850 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 251 transitions. [2021-11-09 09:09:56,850 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) [2021-11-09 09:09:56,850 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 251 transitions. [2021-11-09 09:09:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-09 09:09:56,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:56,851 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:56,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:57,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:57,064 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:09:57,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-11-09 09:09:57,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:57,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092745768] [2021-11-09 09:09:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:57,065 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:57,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:57,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:57,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-09 09:09:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:57,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-09 09:09:57,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:57,432 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:09:57,433 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 [2021-11-09 09:09:57,778 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-09 09:09:57,778 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 [2021-11-09 09:09:57,880 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-09 09:09:57,881 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 [2021-11-09 09:09:57,978 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 [2021-11-09 09:09:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:58,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:58,157 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-09 09:09:58,157 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 [2021-11-09 09:10:00,240 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 [2021-11-09 09:10:02,301 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$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|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) is different from false [2021-11-09 09:10:04,352 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 [2021-11-09 09:10:06,399 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 [2021-11-09 09:10:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:06,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:10:06,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092745768] [2021-11-09 09:10:06,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092745768] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:06,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:06,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-11-09 09:10:06,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088540564] [2021-11-09 09:10:06,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 09:10:06,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:10:06,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 09:10:06,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=75, Unknown=4, NotChecked=76, Total=182 [2021-11-09 09:10:06,618 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) [2021-11-09 09:10:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:11,986 INFO L93 Difference]: Finished difference Result 252 states and 276 transitions. [2021-11-09 09:10:11,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:10:11,987 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 [2021-11-09 09:10:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:11,989 INFO L225 Difference]: With dead ends: 252 [2021-11-09 09:10:11,989 INFO L226 Difference]: Without dead ends: 252 [2021-11-09 09:10:11,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=77, Invalid=241, Unknown=4, NotChecked=140, Total=462 [2021-11-09 09:10:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-09 09:10:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-11-09 09:10:12,005 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) [2021-11-09 09:10:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-11-09 09:10:12,009 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 16 [2021-11-09 09:10:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:12,010 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-11-09 09:10:12,010 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) [2021-11-09 09:10:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-11-09 09:10:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-09 09:10:12,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:12,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:12,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:10:12,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:10:12,228 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:10:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-11-09 09:10:12,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:10:12,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649904285] [2021-11-09 09:10:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:12,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:10:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:10:12,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:10:12,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-09 09:10:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:12,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-09 09:10:12,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:10:12,675 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:10:12,675 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 [2021-11-09 09:10:12,745 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-09 09:10:12,746 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 [2021-11-09 09:10:13,451 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-11-09 09:10:13,452 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 [2021-11-09 09:10:13,504 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-09 09:10:13,505 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 [2021-11-09 09:10:13,862 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-09 09:10:13,862 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 [2021-11-09 09:10:13,950 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-09 09:10:13,950 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 [2021-11-09 09:10:14,222 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 [2021-11-09 09:10:14,226 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 [2021-11-09 09:10:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:14,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:10:33,904 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 (select |c_#valid| v_gl_insert_~node~1.base_20))))))) is different from false [2021-11-09 09:10:36,081 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 [2021-11-09 09:10:38,257 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 [2021-11-09 09:10:40,438 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 [2021-11-09 09:10:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:40,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:10:40,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649904285] [2021-11-09 09:10:40,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649904285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:40,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:40,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 12] imperfect sequences [] total 20 [2021-11-09 09:10:40,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992961317] [2021-11-09 09:10:40,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-09 09:10:40,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:10:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-09 09:10:40,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=232, Unknown=6, NotChecked=132, Total=420 [2021-11-09 09:10:40,961 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) [2021-11-09 09:10:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:53,546 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2021-11-09 09:10:53,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:10:53,547 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 [2021-11-09 09:10:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:53,549 INFO L225 Difference]: With dead ends: 251 [2021-11-09 09:10:53,550 INFO L226 Difference]: Without dead ends: 251 [2021-11-09 09:10:53,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=120, Invalid=490, Unknown=6, NotChecked=196, Total=812 [2021-11-09 09:10:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-09 09:10:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2021-11-09 09:10:53,559 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) [2021-11-09 09:10:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2021-11-09 09:10:53,561 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 16 [2021-11-09 09:10:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:53,562 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2021-11-09 09:10:53,562 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) [2021-11-09 09:10:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2021-11-09 09:10:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 09:10:53,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:53,563 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:53,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-09 09:10:53,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:10:53,776 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:10:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-11-09 09:10:53,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:10:53,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270859787] [2021-11-09 09:10:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:53,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:10:53,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:10:53,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:10:53,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-09 09:10:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:54,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:10:54,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:10:54,076 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 [2021-11-09 09:10:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:54,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:10:54,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:54,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:10:54,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270859787] [2021-11-09 09:10:54,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270859787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:54,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:54,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-09 09:10:54,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706075066] [2021-11-09 09:10:54,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:10:54,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:10:54,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:10:54,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:10:54,330 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) [2021-11-09 09:10:55,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:55,262 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2021-11-09 09:10:55,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:10:55,263 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 [2021-11-09 09:10:55,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:55,265 INFO L225 Difference]: With dead ends: 256 [2021-11-09 09:10:55,265 INFO L226 Difference]: Without dead ends: 256 [2021-11-09 09:10:55,266 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-09 09:10:55,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2021-11-09 09:10:55,275 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) [2021-11-09 09:10:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2021-11-09 09:10:55,278 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 17 [2021-11-09 09:10:55,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:55,278 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2021-11-09 09:10:55,278 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) [2021-11-09 09:10:55,278 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2021-11-09 09:10:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 09:10:55,279 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:55,279 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:55,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-09 09:10:55,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:10:55,488 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:10:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:55,488 INFO L85 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-11-09 09:10:55,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:10:55,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891275758] [2021-11-09 09:10:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:55,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:10:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:10:55,490 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:10:55,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-09 09:10:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:55,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 09:10:55,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:10:55,799 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 [2021-11-09 09:10:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:55,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:10:56,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:56,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:10:56,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891275758] [2021-11-09 09:10:56,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891275758] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:56,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:56,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-09 09:10:56,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645908598] [2021-11-09 09:10:56,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:10:56,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:10:56,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:10:56,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:10:56,472 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) [2021-11-09 09:10:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:58,831 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-11-09 09:10:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:10:58,833 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 [2021-11-09 09:10:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:58,835 INFO L225 Difference]: With dead ends: 254 [2021-11-09 09:10:58,836 INFO L226 Difference]: Without dead ends: 254 [2021-11-09 09:10:58,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-09 09:10:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-09 09:10:58,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-11-09 09:10:58,845 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) [2021-11-09 09:10:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2021-11-09 09:10:58,847 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 17 [2021-11-09 09:10:58,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:58,848 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2021-11-09 09:10:58,848 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) [2021-11-09 09:10:58,848 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2021-11-09 09:10:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 09:10:58,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:58,849 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:58,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-09 09:10:59,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:10:59,060 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:10:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:59,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-11-09 09:10:59,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:10:59,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911149852] [2021-11-09 09:10:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:59,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:10:59,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:10:59,061 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:10:59,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-09 09:10:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:59,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:10:59,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:10:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:59,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:10:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:59,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:10:59,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911149852] [2021-11-09 09:10:59,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911149852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:59,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:59,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-09 09:10:59,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014386902] [2021-11-09 09:10:59,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:10:59,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:10:59,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:10:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:10:59,524 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) [2021-11-09 09:11:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:00,024 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-11-09 09:11:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:11:00,024 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 [2021-11-09 09:11:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:00,027 INFO L225 Difference]: With dead ends: 249 [2021-11-09 09:11:00,027 INFO L226 Difference]: Without dead ends: 249 [2021-11-09 09:11:00,028 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:11:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-09 09:11:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-09 09:11:00,037 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) [2021-11-09 09:11:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 276 transitions. [2021-11-09 09:11:00,039 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 276 transitions. Word has length 19 [2021-11-09 09:11:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:00,040 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 276 transitions. [2021-11-09 09:11:00,040 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) [2021-11-09 09:11:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 276 transitions. [2021-11-09 09:11:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 09:11:00,041 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:00,041 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:00,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-09 09:11:00,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:11:00,248 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:11:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-11-09 09:11:00,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:11:00,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305282956] [2021-11-09 09:11:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:00,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:11:00,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:11:00,250 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:11:00,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-09 09:11:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:00,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 09:11:00,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:00,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:01,092 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 [2021-11-09 09:11:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:01,344 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:11:01,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305282956] [2021-11-09 09:11:01,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305282956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:01,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:01,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-09 09:11:01,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294997301] [2021-11-09 09:11:01,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 09:11:01,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:11:01,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 09:11:01,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-09 09:11:01,346 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) [2021-11-09 09:11:03,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:03,805 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2021-11-09 09:11:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 09:11:03,807 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 [2021-11-09 09:11:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:03,809 INFO L225 Difference]: With dead ends: 250 [2021-11-09 09:11:03,809 INFO L226 Difference]: Without dead ends: 250 [2021-11-09 09:11:03,809 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:11:03,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-09 09:11:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-11-09 09:11:03,817 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) [2021-11-09 09:11:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 273 transitions. [2021-11-09 09:11:03,820 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 273 transitions. Word has length 19 [2021-11-09 09:11:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:03,820 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 273 transitions. [2021-11-09 09:11:03,820 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) [2021-11-09 09:11:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 273 transitions. [2021-11-09 09:11:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-09 09:11:03,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:03,822 INFO L513 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] [2021-11-09 09:11:03,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-09 09:11:04,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:11:04,034 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:11:04,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-11-09 09:11:04,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:11:04,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663872787] [2021-11-09 09:11:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:04,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:11:04,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:11:04,036 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:11:04,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-09 09:11:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:04,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:11:04,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:04,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:04,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:11:04,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663872787] [2021-11-09 09:11:04,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663872787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:04,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:04,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-09 09:11:04,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604189175] [2021-11-09 09:11:04,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:11:04,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:11:04,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:11:04,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:11:04,716 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) [2021-11-09 09:11:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:05,012 INFO L93 Difference]: Finished difference Result 247 states and 271 transitions. [2021-11-09 09:11:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:11:05,013 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 [2021-11-09 09:11:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:05,016 INFO L225 Difference]: With dead ends: 247 [2021-11-09 09:11:05,016 INFO L226 Difference]: Without dead ends: 247 [2021-11-09 09:11:05,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:11:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-09 09:11:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-11-09 09:11:05,025 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) [2021-11-09 09:11:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2021-11-09 09:11:05,027 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 38 [2021-11-09 09:11:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:05,028 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2021-11-09 09:11:05,028 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) [2021-11-09 09:11:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2021-11-09 09:11:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-09 09:11:05,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:05,030 INFO L513 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] [2021-11-09 09:11:05,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-09 09:11:05,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:11:05,243 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:11:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-11-09 09:11:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:11:05,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594814269] [2021-11-09 09:11:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:05,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:11:05,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:11:05,248 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:11:05,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-09 09:11:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:05,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:11:05,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:05,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:06,223 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-09 09:11:06,224 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 [2021-11-09 09:11:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:06,256 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:11:06,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594814269] [2021-11-09 09:11:06,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594814269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:06,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:06,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-11-09 09:11:06,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890557927] [2021-11-09 09:11:06,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:11:06,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:11:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:11:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:11:06,258 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) [2021-11-09 09:11:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:07,512 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2021-11-09 09:11:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:11:07,512 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 [2021-11-09 09:11:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:07,514 INFO L225 Difference]: With dead ends: 242 [2021-11-09 09:11:07,515 INFO L226 Difference]: Without dead ends: 242 [2021-11-09 09:11:07,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:11:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-09 09:11:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-11-09 09:11:07,523 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) [2021-11-09 09:11:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-11-09 09:11:07,526 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 38 [2021-11-09 09:11:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:07,526 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-11-09 09:11:07,526 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) [2021-11-09 09:11:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-11-09 09:11:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-09 09:11:07,528 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:07,528 INFO L513 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] [2021-11-09 09:11:07,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-09 09:11:07,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:11:07,742 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:11:07,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:07,742 INFO L85 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-11-09 09:11:07,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:11:07,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875686406] [2021-11-09 09:11:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:07,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:11:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:11:07,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:11:07,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-09 09:11:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:08,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 09:11:08,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:08,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:09,066 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 [2021-11-09 09:11:09,834 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:11:09,835 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 [2021-11-09 09:11:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:10,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:11:10,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875686406] [2021-11-09 09:11:10,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875686406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:10,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:10,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-11-09 09:11:10,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740557892] [2021-11-09 09:11:10,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 09:11:10,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:11:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 09:11:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-09 09:11:10,084 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) [2021-11-09 09:11:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:13,304 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-11-09 09:11:13,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:11:13,305 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 [2021-11-09 09:11:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:13,307 INFO L225 Difference]: With dead ends: 240 [2021-11-09 09:11:13,308 INFO L226 Difference]: Without dead ends: 240 [2021-11-09 09:11:13,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:11:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-09 09:11:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-11-09 09:11:13,316 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) [2021-11-09 09:11:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 264 transitions. [2021-11-09 09:11:13,318 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 264 transitions. Word has length 38 [2021-11-09 09:11:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:13,319 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 264 transitions. [2021-11-09 09:11:13,319 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) [2021-11-09 09:11:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 264 transitions. [2021-11-09 09:11:13,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-09 09:11:13,321 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:13,321 INFO L513 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] [2021-11-09 09:11:13,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-09 09:11:13,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:11:13,551 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-09 09:11:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-11-09 09:11:13,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:11:13,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910052989] [2021-11-09 09:11:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:13,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:11:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:11:13,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:11:13,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-09 09:11:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:14,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 09:11:14,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:14,147 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:11:14,147 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 [2021-11-09 09:11:14,405 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 [2021-11-09 09:11:14,484 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 [2021-11-09 09:11:14,848 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 [2021-11-09 09:11:15,136 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-09 09:11:15,137 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 [2021-11-09 09:11:15,258 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-09 09:11:15,259 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 [2021-11-09 09:11:16,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:11:16,060 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-11-09 09:11:16,060 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 [2021-11-09 09:11:16,417 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-09 09:11:16,417 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 [2021-11-09 09:11:16,899 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-09 09:11:16,899 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 [2021-11-09 09:11:17,603 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-09 09:11:17,603 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 [2021-11-09 09:11:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:18,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:32,162 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 [2021-11-09 09:11:32,967 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:11:32,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910052989] [2021-11-09 09:11:32,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-09 09:11:32,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [805031998] [2021-11-09 09:11:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:32,969 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-09 09:11:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/cvc4 [2021-11-09 09:11:32,981 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-09 09:11:32,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-09 09:11:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:33,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-09 09:11:33,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:34,097 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 [2021-11-09 09:11:34,234 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 [2021-11-09 09:11:35,433 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 [2021-11-09 09:11:36,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:11:36,247 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 [2021-11-09 09:11:36,533 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-09 09:11:36,533 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 [2021-11-09 09:11:37,282 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-09 09:11:37,282 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 [2021-11-09 09:11:37,993 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-09 09:11:37,994 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 [2021-11-09 09:11:39,067 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-09 09:11:39,068 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 [2021-11-09 09:11:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:41,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:11:54,787 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:11:54,788 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 [2021-11-09 09:11:55,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-09 09:11:55,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404668367] [2021-11-09 09:11:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:55,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:11:55,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:11:55,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:11:55,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 09:11:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:56,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 09:11:56,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:11:56,652 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-09 09:11:56,653 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 [2021-11-09 09:11:56,860 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 [2021-11-09 09:11:56,910 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 [2021-11-09 09:11:57,127 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 [2021-11-09 09:11:57,267 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-09 09:11:57,268 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 [2021-11-09 09:11:57,340 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-09 09:11:57,341 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 [2021-11-09 09:11:57,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:11:57,481 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-11-09 09:11:57,482 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 [2021-11-09 09:11:57,727 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-09 09:11:57,728 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 [2021-11-09 09:11:58,174 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-09 09:11:58,175 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 [2021-11-09 09:11:58,470 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-09 09:11:58,471 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 [2021-11-09 09:11:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:58,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:12:10,709 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 [2021-11-09 09:12:11,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-09 09:12:11,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:11,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-09 09:12:11,548 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-09 09:12:11,548 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-09 09:12:11,559 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION [2021-11-09 09:12:11,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION [2021-11-09 09:12:11,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION [2021-11-09 09:12:11,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION [2021-11-09 09:12:11,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION [2021-11-09 09:12:11,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION [2021-11-09 09:12:11,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION [2021-11-09 09:12:11,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION [2021-11-09 09:12:11,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION [2021-11-09 09:12:11,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION [2021-11-09 09:12:11,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION [2021-11-09 09:12:11,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION [2021-11-09 09:12:11,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION [2021-11-09 09:12:11,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION [2021-11-09 09:12:11,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION [2021-11-09 09:12:11,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION [2021-11-09 09:12:11,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION [2021-11-09 09:12:11,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION [2021-11-09 09:12:11,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION [2021-11-09 09:12:11,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION [2021-11-09 09:12:11,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION [2021-11-09 09:12:11,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION [2021-11-09 09:12:11,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION [2021-11-09 09:12:11,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION [2021-11-09 09:12:11,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION [2021-11-09 09:12:11,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION [2021-11-09 09:12:11,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION [2021-11-09 09:12:11,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION [2021-11-09 09:12:11,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-11-09 09:12:11,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-11-09 09:12:11,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-11-09 09:12:11,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 09:12:11,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 09:12:11,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 09:12:11,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-11-09 09:12:11,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-11-09 09:12:11,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-11-09 09:12:11,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-11-09 09:12:11,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-09 09:12:11,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-11-09 09:12:11,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-11-09 09:12:11,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-11-09 09:12:11,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-11-09 09:12:11,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-09 09:12:11,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-09 09:12:12,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-09 09:12:12,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:12:12,189 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:12,194 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:12:12,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:12:12 BoogieIcfgContainer [2021-11-09 09:12:12,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:12:12,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:12:12,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:12:12,216 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:12:12,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:23" (3/4) ... [2021-11-09 09:12:12,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:12:12,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:12:12,226 INFO L168 Benchmark]: Toolchain (without parser) took 171150.77 ms. Allocated memory was 54.5 MB in the beginning and 203.4 MB in the end (delta: 148.9 MB). Free memory was 29.0 MB in the beginning and 141.4 MB in the end (delta: -112.4 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:12:12,227 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:12:12,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.41 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 35.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-11-09 09:12:12,228 INFO L168 Benchmark]: Boogie Preprocessor took 146.03 ms. Allocated memory is still 67.1 MB. Free memory was 35.1 MB in the beginning and 46.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-11-09 09:12:12,228 INFO L168 Benchmark]: RCFGBuilder took 1527.90 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 37.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:12:12,229 INFO L168 Benchmark]: TraceAbstraction took 168550.21 ms. Allocated memory was 67.1 MB in the beginning and 203.4 MB in the end (delta: 136.3 MB). Free memory was 36.4 MB in the beginning and 141.4 MB in the end (delta: -105.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:12:12,229 INFO L168 Benchmark]: Witness Printer took 9.42 ms. Allocated memory is still 203.4 MB. Free memory is still 141.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:12:12,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 909.41 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 35.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 146.03 ms. Allocated memory is still 67.1 MB. Free memory was 35.1 MB in the beginning and 46.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1527.90 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 37.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 168550.21 ms. Allocated memory was 67.1 MB in the beginning and 203.4 MB in the end (delta: 136.3 MB). Free memory was 36.4 MB in the beginning and 141.4 MB in the end (delta: -105.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 16.1 GB. * Witness Printer took 9.42 ms. Allocated memory is still 203.4 MB. Free memory is still 141.4 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 168.4s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2944 SDtfs, 3479 SDslu, 10644 SDs, 0 SdLazy, 5213 SolverSat, 532 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 590 GetRequests, 404 SyntacticMatches, 36 SemanticMatches, 150 ConstructedPredicates, 8 IntricatePredicates, 1 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 65.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 68 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 87.2s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 75 QuantifiedInterpolants, 6858 SizeOfPredicates, 143 NumberOfNonLiveVariables, 2248 ConjunctsInSsa, 208 ConjunctsInUnsatCore, 29 InterpolantComputations, 28 PerfectInterpolantSequences, 3/10 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 [2021-11-09 09:12:12,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd75bd2-8e61-4a18-8bdc-eca5c55303c3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN