./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/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_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y --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-63182f1 [2021-11-13 18:52:30,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:52:30,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:52:30,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:52:30,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:52:30,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:52:30,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:52:30,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:52:30,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:52:30,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:52:30,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:52:30,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:52:30,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:52:30,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:52:30,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:52:30,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:52:30,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:52:30,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:52:30,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:52:30,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:52:30,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:52:30,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:52:30,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:52:30,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:52:30,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:52:30,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:52:30,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:52:30,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:52:30,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:52:30,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:52:30,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:52:30,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:52:30,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:52:30,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:52:30,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:52:30,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:52:30,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:52:30,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:52:30,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:52:30,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:52:30,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:52:30,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-11-13 18:52:30,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:52:30,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:52:30,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:52:30,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:52:30,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:52:30,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:52:30,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:52:30,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:52:30,486 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:52:30,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:52:30,487 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:52:30,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:52:30,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:52:30,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:52:30,489 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:52:30,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:52:30,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:52:30,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:52:30,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:52:30,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:52:30,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:52:30,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:52:30,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:52:30,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:52:30,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:52:30,493 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_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-13 18:52:30,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:52:30,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:52:30,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:52:30,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:52:30,858 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:52:30,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-13 18:52:30,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/6de74121b/1ba188abfc75486a8fa2dfc9feccc262/FLAGdc27ba727 [2021-11-13 18:52:31,617 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:52:31,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-13 18:52:31,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/6de74121b/1ba188abfc75486a8fa2dfc9feccc262/FLAGdc27ba727 [2021-11-13 18:52:31,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/6de74121b/1ba188abfc75486a8fa2dfc9feccc262 [2021-11-13 18:52:31,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:52:31,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:52:31,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:31,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:52:31,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:52:31,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:31" (1/1) ... [2021-11-13 18:52:31,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d62aea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:31, skipping insertion in model container [2021-11-13 18:52:31,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:31" (1/1) ... [2021-11-13 18:52:31,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:52:32,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:52:32,421 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_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-13 18:52:32,437 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 18:52:32,438 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 18:52:32,439 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 18:52:32,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:32,480 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) [2021-11-13 18:52:32,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c354a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:32, skipping insertion in model container [2021-11-13 18:52:32,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:32,483 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 18:52:32,485 INFO L158 Benchmark]: Toolchain (without parser) took 539.13ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 106.2MB in the end (delta: -37.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,487 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:52:32,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.63ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 106.2MB in the end (delta: -37.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.63ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 106.2MB in the end (delta: -37.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/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_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y --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-63182f1 [2021-11-13 18:52:34,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:52:34,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:52:34,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:52:34,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:52:34,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:52:34,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:52:34,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:52:34,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:52:34,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:52:34,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:52:34,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:52:34,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:52:34,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:52:34,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:52:34,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:52:34,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:52:34,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:52:34,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:52:34,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:52:34,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:52:34,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:52:34,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:52:34,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:52:34,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:52:34,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:52:34,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:52:34,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:52:34,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:52:34,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:52:34,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:52:34,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:52:34,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:52:34,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:52:34,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:52:34,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:52:34,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:52:34,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:52:34,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:52:34,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:52:34,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:52:34,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-11-13 18:52:34,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:52:34,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:52:34,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:52:34,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:52:34,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:52:34,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:52:34,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:52:34,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:52:34,829 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:52:34,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:52:34,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:52:34,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:52:34,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:52:34,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:52:34,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:52:34,830 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:52:34,831 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:52:34,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:52:34,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:52:34,831 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:52:34,832 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:52:34,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:52:34,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:52:34,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:52:34,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:52:34,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:52:34,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:52:34,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:52:34,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:52:34,834 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:52:34,834 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:52:34,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:52:34,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:52:34,835 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_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-13 18:52:35,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:52:35,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:52:35,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:52:35,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:52:35,244 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:52:35,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-13 18:52:35,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/ec60bfef2/deecf485dad84f7596cb20fa43c191e2/FLAGd6622185e [2021-11-13 18:52:35,980 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:52:35,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-13 18:52:36,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/ec60bfef2/deecf485dad84f7596cb20fa43c191e2/FLAGd6622185e [2021-11-13 18:52:36,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/data/ec60bfef2/deecf485dad84f7596cb20fa43c191e2 [2021-11-13 18:52:36,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:52:36,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:52:36,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:36,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:52:36,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:52:36,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:36" (1/1) ... [2021-11-13 18:52:36,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622cf3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:36, skipping insertion in model container [2021-11-13 18:52:36,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:36" (1/1) ... [2021-11-13 18:52:36,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:52:36,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:52:36,744 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_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-13 18:52:36,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:36,861 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 18:52:36,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:52:36,927 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_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-13 18:52:36,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:36,973 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:52:37,028 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_2353ecd9-d137-49ba-adb4-60b19623f761/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-13 18:52:37,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:37,148 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:52:37,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37 WrapperNode [2021-11-13 18:52:37,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:37,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:52:37,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:52:37,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:52:37,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:52:37,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:52:37,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:52:37,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:52:37,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (1/1) ... [2021-11-13 18:52:37,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:52:37,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:52:37,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:52:37,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:52:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 18:52:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:52:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-13 18:52:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-13 18:52:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-11-13 18:52:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-11-13 18:52:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 18:52:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 18:52:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-13 18:52:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-13 18:52:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 18:52:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 18:52:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 18:52:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 18:52:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 18:52:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 18:52:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 18:52:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 18:52:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 18:52:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 18:52:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 18:52:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 18:52:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 18:52:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 18:52:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 18:52:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 18:52:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 18:52:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 18:52:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 18:52:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 18:52:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 18:52:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 18:52:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 18:52:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 18:52:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 18:52:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 18:52:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 18:52:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 18:52:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 18:52:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 18:52:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-11-13 18:52:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-11-13 18:52:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-11-13 18:52:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-11-13 18:52:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-11-13 18:52:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-11-13 18:52:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-11-13 18:52:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-11-13 18:52:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-11-13 18:52:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-11-13 18:52:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-11-13 18:52:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-11-13 18:52:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-11-13 18:52:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-11-13 18:52:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-11-13 18:52:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-11-13 18:52:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-11-13 18:52:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-11-13 18:52:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-11-13 18:52:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-11-13 18:52:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-11-13 18:52:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-13 18:52:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-11-13 18:52:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-11-13 18:52:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-11-13 18:52:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-11-13 18:52:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-11-13 18:52:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-11-13 18:52:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-13 18:52:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-11-13 18:52:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-11-13 18:52:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-11-13 18:52:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 18:52:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 18:52:38,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:52:38,762 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-11-13 18:52:38,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:38 BoogieIcfgContainer [2021-11-13 18:52:38,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:52:38,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:52:38,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:52:38,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:52:38,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:52:36" (1/3) ... [2021-11-13 18:52:38,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd807fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:52:38, skipping insertion in model container [2021-11-13 18:52:38,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:37" (2/3) ... [2021-11-13 18:52:38,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd807fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:52:38, skipping insertion in model container [2021-11-13 18:52:38,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:38" (3/3) ... [2021-11-13 18:52:38,776 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-11-13 18:52:38,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:52:38,787 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-13 18:52:38,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:52:38,862 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 [2021-11-13 18:52:38,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-13 18:52:38,892 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) [2021-11-13 18:52:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 18:52:38,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:38,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:38,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:52:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-11-13 18:52:38,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:52:38,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058251409] [2021-11-13 18:52:38,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:38,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:52:38,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:52:38,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:52:38,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:52:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:39,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:52:39,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:52:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:39,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:52:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:39,316 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:52:39,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058251409] [2021-11-13 18:52:39,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058251409] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:39,317 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:39,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:52:39,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088638650] [2021-11-13 18:52:39,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:39,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:52:39,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:52:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:52:39,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:52:39,379 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) [2021-11-13 18:52:39,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:39,446 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-11-13 18:52:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:52:39,449 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 [2021-11-13 18:52:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:39,466 INFO L225 Difference]: With dead ends: 236 [2021-11-13 18:52:39,466 INFO L226 Difference]: Without dead ends: 233 [2021-11-13 18:52:39,468 INFO L932 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 [2021-11-13 18:52:39,474 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:39,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 9.29ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:52:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-13 18:52:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-11-13 18:52:39,547 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) [2021-11-13 18:52:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-11-13 18:52:39,562 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-11-13 18:52:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:39,563 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-11-13 18:52:39,563 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) [2021-11-13 18:52:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-11-13 18:52:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 18:52:39,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:39,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:39,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:52:39,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:52:39,777 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:52:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:39,778 INFO L85 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-11-13 18:52:39,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:52:39,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780282949] [2021-11-13 18:52:39,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:39,779 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:52:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:52:39,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:52:39,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:52:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:39,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:52:39,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:52:40,066 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 [2021-11-13 18:52:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:40,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:52:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:40,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:52:40,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780282949] [2021-11-13 18:52:40,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780282949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:40,114 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:40,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:52:40,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682622326] [2021-11-13 18:52:40,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:40,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:52:40,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:52:40,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:52:40,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:52:40,118 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) [2021-11-13 18:52:40,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:40,369 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-11-13 18:52:40,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:52:40,370 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 [2021-11-13 18:52:40,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:40,372 INFO L225 Difference]: With dead ends: 230 [2021-11-13 18:52:40,372 INFO L226 Difference]: Without dead ends: 230 [2021-11-13 18:52:40,372 INFO L932 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 [2021-11-13 18:52:40,374 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 8 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.32ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:40,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 420 Invalid, 75 Unknown, 0 Unchecked, 5.32ms Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 226.68ms Time] [2021-11-13 18:52:40,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-13 18:52:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-13 18:52:40,389 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) [2021-11-13 18:52:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-11-13 18:52:40,391 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-11-13 18:52:40,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:40,392 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-11-13 18:52:40,392 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) [2021-11-13 18:52:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-11-13 18:52:40,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 18:52:40,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:40,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:40,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 18:52:40,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:52:40,607 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:52:40,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-11-13 18:52:40,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:52:40,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593244060] [2021-11-13 18:52:40,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:40,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:52:40,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:52:40,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:52:40,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:52:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:40,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:52:40,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:52:40,851 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 [2021-11-13 18:52:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:40,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:52:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:40,979 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:52:40,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593244060] [2021-11-13 18:52:40,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593244060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:40,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:40,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 18:52:40,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425651389] [2021-11-13 18:52:40,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:40,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:52:40,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:52:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:52:40,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:52:40,984 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) [2021-11-13 18:52:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:41,487 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-11-13 18:52:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:52:41,488 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 [2021-11-13 18:52:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:41,490 INFO L225 Difference]: With dead ends: 227 [2021-11-13 18:52:41,490 INFO L226 Difference]: Without dead ends: 227 [2021-11-13 18:52:41,490 INFO L932 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 [2021-11-13 18:52:41,492 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 10 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.98ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 486.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:41,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 3.98ms Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 486.00ms Time] [2021-11-13 18:52:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-13 18:52:41,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-13 18:52:41,521 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) [2021-11-13 18:52:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-11-13 18:52:41,524 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-11-13 18:52:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:41,524 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-11-13 18:52:41,524 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) [2021-11-13 18:52:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-11-13 18:52:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 18:52:41,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:41,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:41,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:52:41,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:52:41,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:52:41,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-11-13 18:52:41,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:52:41,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177175922] [2021-11-13 18:52:41,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:41,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:52:41,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:52:41,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:52:41,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:52:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:41,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 18:52:41,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:52:42,049 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:52:42,050 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 [2021-11-13 18:52:42,372 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 18:52:42,376 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 [2021-11-13 18:52:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:42,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:52:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:57,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:52:57,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177175922] [2021-11-13 18:52:57,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177175922] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:57,865 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:57,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 18:52:57,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511753788] [2021-11-13 18:52:57,865 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:57,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:52:57,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:52:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:52:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-13 18:52:57,866 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) [2021-11-13 18:52:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:58,126 INFO L93 Difference]: Finished difference Result 234 states and 259 transitions. [2021-11-13 18:52:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:52:58,127 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 [2021-11-13 18:52:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:58,130 INFO L225 Difference]: With dead ends: 234 [2021-11-13 18:52:58,130 INFO L226 Difference]: Without dead ends: 234 [2021-11-13 18:52:58,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-13 18:52:58,132 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 1 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 199.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 162 IncrementalHoareTripleChecker+Unchecked, 238.07ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:58,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 938 Invalid, 233 Unknown, 0 Unchecked, 5.60ms Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 162 Unchecked, 238.07ms Time] [2021-11-13 18:52:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-13 18:52:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-13 18:52:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 124 states have (on average 1.685483870967742) internal successors, (209), 204 states have internal predecessors, (209), 33 states have call successors, (33), 16 states have call predecessors, (33), 12 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-13 18:52:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 259 transitions. [2021-11-13 18:52:58,146 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 259 transitions. Word has length 13 [2021-11-13 18:52:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:58,147 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 259 transitions. [2021-11-13 18:52:58,147 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) [2021-11-13 18:52:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 259 transitions. [2021-11-13 18:52:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 18:52:58,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:58,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:58,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:52:58,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:52:58,361 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:52:58,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:58,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-11-13 18:52:58,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:52:58,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934908121] [2021-11-13 18:52:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:58,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:52:58,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:52:58,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:52:58,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:52:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:58,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 18:52:58,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:52:58,657 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-13 18:52:58,657 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 [2021-11-13 18:52:58,726 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:52:58,727 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 [2021-11-13 18:52:59,168 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-13 18:52:59,169 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 [2021-11-13 18:52:59,207 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-13 18:52:59,208 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 [2021-11-13 18:52:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:59,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:53:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:05,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:53:05,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934908121] [2021-11-13 18:53:05,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934908121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:05,328 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:05,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 18:53:05,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694508478] [2021-11-13 18:53:05,329 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:05,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:53:05,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:53:05,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:53:05,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-11-13 18:53:05,331 INFO L87 Difference]: Start difference. First operand 234 states and 259 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) [2021-11-13 18:53:07,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:07,512 INFO L93 Difference]: Finished difference Result 341 states and 380 transitions. [2021-11-13 18:53:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:53:07,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-11-13 18:53:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:07,516 INFO L225 Difference]: With dead ends: 341 [2021-11-13 18:53:07,516 INFO L226 Difference]: Without dead ends: 341 [2021-11-13 18:53:07,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-11-13 18:53:07,518 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 200 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1902.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.04ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 333 IncrementalHoareTripleChecker+Unchecked, 2142.15ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:07,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1305 Invalid, 717 Unknown, 0 Unchecked, 11.04ms Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 0 Unknown, 333 Unchecked, 2142.15ms Time] [2021-11-13 18:53:07,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-13 18:53:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 292. [2021-11-13 18:53:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 182 states have (on average 1.7087912087912087) internal successors, (311), 259 states have internal predecessors, (311), 34 states have call successors, (34), 18 states have call predecessors, (34), 13 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 18:53:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 363 transitions. [2021-11-13 18:53:07,545 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 363 transitions. Word has length 13 [2021-11-13 18:53:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:07,546 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 363 transitions. [2021-11-13 18:53:07,546 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) [2021-11-13 18:53:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 363 transitions. [2021-11-13 18:53:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 18:53:07,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:07,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:07,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:53:07,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:53:07,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:53:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:07,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-11-13 18:53:07,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:53:07,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596042284] [2021-11-13 18:53:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:07,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:53:07,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:53:07,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:53:07,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 18:53:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:07,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 18:53:07,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:53:08,120 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:53:08,120 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 [2021-11-13 18:53:08,415 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 18:53:08,415 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 [2021-11-13 18:53:08,521 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-13 18:53:08,522 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 [2021-11-13 18:53:08,578 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 [2021-11-13 18:53:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:08,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:53:08,734 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-13 18:53:08,734 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 [2021-11-13 18:53:29,772 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 [2021-11-13 18:53:31,830 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 [2021-11-13 18:53:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:32,119 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:53:32,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596042284] [2021-11-13 18:53:32,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596042284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:53:32,120 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:53:32,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-11-13 18:53:32,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575493050] [2021-11-13 18:53:32,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:53:32,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 18:53:32,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:53:32,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 18:53:32,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=8, NotChecked=42, Total=182 [2021-11-13 18:53:32,121 INFO L87 Difference]: Start difference. First operand 292 states and 363 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) [2021-11-13 18:53:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:53:35,704 INFO L93 Difference]: Finished difference Result 308 states and 379 transitions. [2021-11-13 18:53:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:53:35,705 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 [2021-11-13 18:53:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:53:35,708 INFO L225 Difference]: With dead ends: 308 [2021-11-13 18:53:35,708 INFO L226 Difference]: Without dead ends: 308 [2021-11-13 18:53:35,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=80, Invalid=261, Unknown=9, NotChecked=70, Total=420 [2021-11-13 18:53:35,709 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 44 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1124.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.46ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 360 IncrementalHoareTripleChecker+Unchecked, 1277.43ms IncrementalHoareTripleChecker+Time [2021-11-13 18:53:35,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 2198 Invalid, 845 Unknown, 0 Unchecked, 13.46ms Time], IncrementalHoareTripleChecker [12 Valid, 473 Invalid, 0 Unknown, 360 Unchecked, 1277.43ms Time] [2021-11-13 18:53:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-13 18:53:35,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2021-11-13 18:53:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 188 states have (on average 1.7234042553191489) internal successors, (324), 266 states have internal predecessors, (324), 35 states have call successors, (35), 19 states have call predecessors, (35), 14 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:53:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 378 transitions. [2021-11-13 18:53:35,724 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 378 transitions. Word has length 16 [2021-11-13 18:53:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:53:35,724 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 378 transitions. [2021-11-13 18:53:35,725 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) [2021-11-13 18:53:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 378 transitions. [2021-11-13 18:53:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 18:53:35,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:53:35,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:53:35,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-13 18:53:35,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:53:35,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:53:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:53:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-11-13 18:53:35,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:53:35,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044346925] [2021-11-13 18:53:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:53:35,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:53:35,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:53:35,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:53:35,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 18:53:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:53:36,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-13 18:53:36,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:53:36,332 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:53:36,332 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 [2021-11-13 18:53:36,399 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-13 18:53:36,399 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 [2021-11-13 18:53:37,048 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-11-13 18:53:37,048 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 [2021-11-13 18:53:37,099 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-13 18:53:37,099 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 [2021-11-13 18:53:37,358 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-13 18:53:37,358 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 [2021-11-13 18:53:37,414 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-13 18:53:37,415 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 [2021-11-13 18:53:37,621 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 [2021-11-13 18:53:37,624 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 [2021-11-13 18:53:37,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:53:37,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:12,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:12,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044346925] [2021-11-13 18:54:12,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044346925] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:12,567 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:12,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-11-13 18:54:12,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139268511] [2021-11-13 18:54:12,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:12,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 18:54:12,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 18:54:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=254, Unknown=7, NotChecked=0, Total=306 [2021-11-13 18:54:12,570 INFO L87 Difference]: Start difference. First operand 300 states and 378 transitions. Second operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 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) [2021-11-13 18:54:14,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:14,704 INFO L93 Difference]: Finished difference Result 301 states and 378 transitions. [2021-11-13 18:54:14,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:54:14,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 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 16 [2021-11-13 18:54:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:14,708 INFO L225 Difference]: With dead ends: 301 [2021-11-13 18:54:14,708 INFO L226 Difference]: Without dead ends: 301 [2021-11-13 18:54:14,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=60, Invalid=313, Unknown=7, NotChecked=0, Total=380 [2021-11-13 18:54:14,709 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 3 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1652.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.09ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 495 IncrementalHoareTripleChecker+Unchecked, 1891.45ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:14,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2295 Invalid, 839 Unknown, 0 Unchecked, 11.09ms Time], IncrementalHoareTripleChecker [3 Valid, 341 Invalid, 0 Unknown, 495 Unchecked, 1891.45ms Time] [2021-11-13 18:54:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-13 18:54:14,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2021-11-13 18:54:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 188 states have (on average 1.7180851063829787) internal successors, (323), 266 states have internal predecessors, (323), 35 states have call successors, (35), 19 states have call predecessors, (35), 14 states have return successors, (19), 15 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:54:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 377 transitions. [2021-11-13 18:54:14,724 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 377 transitions. Word has length 16 [2021-11-13 18:54:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:14,724 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 377 transitions. [2021-11-13 18:54:14,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 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) [2021-11-13 18:54:14,725 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 377 transitions. [2021-11-13 18:54:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 18:54:14,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:14,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:14,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:14,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:14,938 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:14,939 INFO L85 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-11-13 18:54:14,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:14,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997400653] [2021-11-13 18:54:14,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:14,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:14,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:14,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:15,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 18:54:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:15,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:54:15,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:15,171 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 [2021-11-13 18:54:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:15,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:15,370 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:15,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997400653] [2021-11-13 18:54:15,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997400653] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:15,370 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:15,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-13 18:54:15,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683155453] [2021-11-13 18:54:15,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:15,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:54:15,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:15,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:54:15,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:54:15,372 INFO L87 Difference]: Start difference. First operand 300 states and 377 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) [2021-11-13 18:54:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:16,302 INFO L93 Difference]: Finished difference Result 320 states and 394 transitions. [2021-11-13 18:54:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:54:16,303 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 [2021-11-13 18:54:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:16,306 INFO L225 Difference]: With dead ends: 320 [2021-11-13 18:54:16,306 INFO L226 Difference]: Without dead ends: 320 [2021-11-13 18:54:16,307 INFO L932 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 [2021-11-13 18:54:16,307 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 42 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 753.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.39ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 877.74ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:16,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1070 Invalid, 399 Unknown, 0 Unchecked, 5.39ms Time], IncrementalHoareTripleChecker [5 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 877.74ms Time] [2021-11-13 18:54:16,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-13 18:54:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 312. [2021-11-13 18:54:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 198 states have (on average 1.707070707070707) internal successors, (338), 275 states have internal predecessors, (338), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 394 transitions. [2021-11-13 18:54:16,325 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 394 transitions. Word has length 17 [2021-11-13 18:54:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:16,325 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 394 transitions. [2021-11-13 18:54:16,326 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) [2021-11-13 18:54:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 394 transitions. [2021-11-13 18:54:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 18:54:16,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:16,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:16,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-13 18:54:16,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:16,544 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:16,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:16,544 INFO L85 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-11-13 18:54:16,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:16,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878423621] [2021-11-13 18:54:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:16,545 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:16,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:16,546 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:16,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 18:54:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:16,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 18:54:16,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:16,740 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 [2021-11-13 18:54:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:16,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:17,510 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:17,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878423621] [2021-11-13 18:54:17,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878423621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:17,511 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:17,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 18:54:17,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814122846] [2021-11-13 18:54:17,511 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:17,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 18:54:17,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 18:54:17,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:54:17,512 INFO L87 Difference]: Start difference. First operand 312 states and 394 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) [2021-11-13 18:54:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:20,516 INFO L93 Difference]: Finished difference Result 318 states and 390 transitions. [2021-11-13 18:54:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:54:20,517 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 [2021-11-13 18:54:20,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:20,520 INFO L225 Difference]: With dead ends: 318 [2021-11-13 18:54:20,520 INFO L226 Difference]: Without dead ends: 318 [2021-11-13 18:54:20,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:54:20,521 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 44 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2570.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.55ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2878.78ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:20,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 1796 Invalid, 652 Unknown, 0 Unchecked, 8.55ms Time], IncrementalHoareTripleChecker [5 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 2878.78ms Time] [2021-11-13 18:54:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-13 18:54:20,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2021-11-13 18:54:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 198 states have (on average 1.6868686868686869) internal successors, (334), 275 states have internal predecessors, (334), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:20,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 390 transitions. [2021-11-13 18:54:20,535 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 390 transitions. Word has length 17 [2021-11-13 18:54:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:20,535 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 390 transitions. [2021-11-13 18:54:20,535 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) [2021-11-13 18:54:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 390 transitions. [2021-11-13 18:54:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 18:54:20,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:20,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:20,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:20,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:20,748 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:20,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-11-13 18:54:20,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:20,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448938218] [2021-11-13 18:54:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:20,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:20,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:20,751 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:20,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 18:54:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:20,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:54:20,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:20,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:21,066 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:21,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448938218] [2021-11-13 18:54:21,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448938218] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:21,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:21,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 18:54:21,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717845904] [2021-11-13 18:54:21,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:21,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:54:21,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:21,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:54:21,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:54:21,068 INFO L87 Difference]: Start difference. First operand 312 states and 390 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) [2021-11-13 18:54:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:21,648 INFO L93 Difference]: Finished difference Result 311 states and 387 transitions. [2021-11-13 18:54:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:54:21,649 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 [2021-11-13 18:54:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:21,654 INFO L225 Difference]: With dead ends: 311 [2021-11-13 18:54:21,654 INFO L226 Difference]: Without dead ends: 311 [2021-11-13 18:54:21,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:54:21,655 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 22 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 476.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 549.23ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:21,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 743 Invalid, 208 Unknown, 0 Unchecked, 2.92ms Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 549.23ms Time] [2021-11-13 18:54:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-13 18:54:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-11-13 18:54:21,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 198 states have (on average 1.6717171717171717) internal successors, (331), 274 states have internal predecessors, (331), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 387 transitions. [2021-11-13 18:54:21,669 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 387 transitions. Word has length 19 [2021-11-13 18:54:21,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:21,670 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 387 transitions. [2021-11-13 18:54:21,670 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) [2021-11-13 18:54:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 387 transitions. [2021-11-13 18:54:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 18:54:21,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:21,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:54:21,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:21,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:21,883 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:21,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:21,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-11-13 18:54:21,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:21,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824361001] [2021-11-13 18:54:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:21,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:21,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:21,885 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:21,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 18:54:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:22,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 18:54:22,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:22,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:22,522 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 [2021-11-13 18:54:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:22,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:22,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824361001] [2021-11-13 18:54:22,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824361001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:22,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:22,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 18:54:22,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263550669] [2021-11-13 18:54:22,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:22,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 18:54:22,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 18:54:22,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:54:22,780 INFO L87 Difference]: Start difference. First operand 311 states and 387 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) [2021-11-13 18:54:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:24,673 INFO L93 Difference]: Finished difference Result 314 states and 384 transitions. [2021-11-13 18:54:24,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:54:24,674 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 [2021-11-13 18:54:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:24,676 INFO L225 Difference]: With dead ends: 314 [2021-11-13 18:54:24,677 INFO L226 Difference]: Without dead ends: 314 [2021-11-13 18:54:24,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-11-13 18:54:24,678 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 517 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1273.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.45ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1422.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:24,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 1183 Invalid, 336 Unknown, 0 Unchecked, 7.45ms Time], IncrementalHoareTripleChecker [56 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1422.31ms Time] [2021-11-13 18:54:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-13 18:54:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2021-11-13 18:54:24,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 198 states have (on average 1.6565656565656566) internal successors, (328), 273 states have internal predecessors, (328), 36 states have call successors, (36), 21 states have call predecessors, (36), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 384 transitions. [2021-11-13 18:54:24,693 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 384 transitions. Word has length 19 [2021-11-13 18:54:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:24,693 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 384 transitions. [2021-11-13 18:54:24,694 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) [2021-11-13 18:54:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 384 transitions. [2021-11-13 18:54:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:54:24,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:24,696 INFO L514 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] [2021-11-13 18:54:24,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:24,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:24,917 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:24,918 INFO L85 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-11-13 18:54:24,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:24,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103893883] [2021-11-13 18:54:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:24,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:24,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:24,919 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 18:54:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:25,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:54:25,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:25,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:25,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:25,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103893883] [2021-11-13 18:54:25,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103893883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:25,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:25,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 18:54:25,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341814699] [2021-11-13 18:54:25,350 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:25,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:54:25,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:25,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:54:25,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:54:25,351 INFO L87 Difference]: Start difference. First operand 310 states and 384 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) [2021-11-13 18:54:25,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:25,614 INFO L93 Difference]: Finished difference Result 309 states and 381 transitions. [2021-11-13 18:54:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:54:25,622 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 [2021-11-13 18:54:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:25,625 INFO L225 Difference]: With dead ends: 309 [2021-11-13 18:54:25,625 INFO L226 Difference]: Without dead ends: 309 [2021-11-13 18:54:25,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:54:25,626 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 311 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:25,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 520 Invalid, 101 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 212.73ms Time] [2021-11-13 18:54:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-13 18:54:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-13 18:54:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 272 states have internal predecessors, (326), 35 states have call successors, (35), 21 states have call predecessors, (35), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 381 transitions. [2021-11-13 18:54:25,640 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 381 transitions. Word has length 38 [2021-11-13 18:54:25,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:25,640 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 381 transitions. [2021-11-13 18:54:25,641 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) [2021-11-13 18:54:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 381 transitions. [2021-11-13 18:54:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:54:25,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:25,643 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-11-13 18:54:25,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:25,877 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 507100171, now seen corresponding path program 1 times [2021-11-13 18:54:25,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:25,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433068477] [2021-11-13 18:54:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:25,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:25,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:25,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:25,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 18:54:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:26,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 18:54:26,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:26,163 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 [2021-11-13 18:54:26,397 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 18:54:26,397 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 1 case distinctions, treesize of input 20 treesize of output 25 [2021-11-13 18:54:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:26,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:26,927 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:26,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433068477] [2021-11-13 18:54:26,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433068477] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:54:26,927 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:54:26,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-11-13 18:54:26,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676167523] [2021-11-13 18:54:26,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:54:26,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:54:26,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:26,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:54:26,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:26,928 INFO L87 Difference]: Start difference. First operand 309 states and 381 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-13 18:54:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:27,330 INFO L93 Difference]: Finished difference Result 310 states and 380 transitions. [2021-11-13 18:54:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:54:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2021-11-13 18:54:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:27,333 INFO L225 Difference]: With dead ends: 310 [2021-11-13 18:54:27,333 INFO L226 Difference]: Without dead ends: 310 [2021-11-13 18:54:27,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 8 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:54:27,334 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 28 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 343.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:27,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 729 Invalid, 224 Unknown, 0 Unchecked, 2.44ms Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 78 Unchecked, 343.99ms Time] [2021-11-13 18:54:27,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-13 18:54:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 309. [2021-11-13 18:54:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 272 states have internal predecessors, (325), 35 states have call successors, (35), 21 states have call predecessors, (35), 16 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 18:54:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 380 transitions. [2021-11-13 18:54:27,347 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 380 transitions. Word has length 38 [2021-11-13 18:54:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:27,347 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 380 transitions. [2021-11-13 18:54:27,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-13 18:54:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 380 transitions. [2021-11-13 18:54:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:54:27,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:27,349 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-11-13 18:54:27,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-13 18:54:27,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:27,563 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:27,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash 507100172, now seen corresponding path program 1 times [2021-11-13 18:54:27,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:27,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112275706] [2021-11-13 18:54:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:27,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:27,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:27,566 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 18:54:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:27,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 18:54:27,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:28,576 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 18:54:28,576 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 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-13 18:54:28,594 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 18:54:28,595 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 28 treesize of output 28 [2021-11-13 18:54:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:28,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:31,727 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 53 treesize of output 49 [2021-11-13 18:54:31,746 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 18:54:31,746 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 49 treesize of output 48 [2021-11-13 18:54:34,271 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 46 treesize of output 42 [2021-11-13 18:54:36,515 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:54:36,515 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 48 treesize of output 52 [2021-11-13 18:54:36,536 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 18:54:36,536 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 52 treesize of output 51 [2021-11-13 18:54:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:36,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:36,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112275706] [2021-11-13 18:54:36,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112275706] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:54:36,777 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:54:36,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-11-13 18:54:36,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610275375] [2021-11-13 18:54:36,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:54:36,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 18:54:36,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:36,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 18:54:36,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=246, Unknown=1, NotChecked=0, Total=306 [2021-11-13 18:54:36,779 INFO L87 Difference]: Start difference. First operand 309 states and 380 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-13 18:54:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:38,791 INFO L93 Difference]: Finished difference Result 307 states and 376 transitions. [2021-11-13 18:54:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:54:38,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 38 [2021-11-13 18:54:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:38,794 INFO L225 Difference]: With dead ends: 307 [2021-11-13 18:54:38,794 INFO L226 Difference]: Without dead ends: 307 [2021-11-13 18:54:38,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=127, Invalid=424, Unknown=1, NotChecked=0, Total=552 [2021-11-13 18:54:38,796 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 244 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1451.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.69ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 407 IncrementalHoareTripleChecker+Unchecked, 1634.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:38,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 766 Invalid, 886 Unknown, 0 Unchecked, 5.69ms Time], IncrementalHoareTripleChecker [16 Valid, 463 Invalid, 0 Unknown, 407 Unchecked, 1634.68ms Time] [2021-11-13 18:54:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-13 18:54:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 304. [2021-11-13 18:54:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 197 states have (on average 1.619289340101523) internal successors, (319), 269 states have internal predecessors, (319), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:54:38,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 372 transitions. [2021-11-13 18:54:38,807 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 372 transitions. Word has length 38 [2021-11-13 18:54:38,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:38,808 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 372 transitions. [2021-11-13 18:54:38,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 9 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-13 18:54:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 372 transitions. [2021-11-13 18:54:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:54:38,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:38,810 INFO L514 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] [2021-11-13 18:54:38,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-13 18:54:39,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:39,024 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:39,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-11-13 18:54:39,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:39,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233020505] [2021-11-13 18:54:39,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:39,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:39,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:39,026 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:39,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 18:54:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:39,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:54:39,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:39,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:39,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:39,740 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 18:54:39,741 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 [2021-11-13 18:54:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:39,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:39,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233020505] [2021-11-13 18:54:39,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233020505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:39,761 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:39,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-11-13 18:54:39,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56787681] [2021-11-13 18:54:39,761 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:39,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:54:39,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:54:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:54:39,764 INFO L87 Difference]: Start difference. First operand 304 states and 372 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) [2021-11-13 18:54:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:40,408 INFO L93 Difference]: Finished difference Result 341 states and 379 transitions. [2021-11-13 18:54:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:54:40,409 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 [2021-11-13 18:54:40,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:40,412 INFO L225 Difference]: With dead ends: 341 [2021-11-13 18:54:40,412 INFO L226 Difference]: Without dead ends: 341 [2021-11-13 18:54:40,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:54:40,413 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 424 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 510.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.01ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 595.80ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:40,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 623 Invalid, 353 Unknown, 0 Unchecked, 4.01ms Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 85 Unchecked, 595.80ms Time] [2021-11-13 18:54:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-13 18:54:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 302. [2021-11-13 18:54:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 197 states have (on average 1.583756345177665) internal successors, (312), 267 states have internal predecessors, (312), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:54:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 365 transitions. [2021-11-13 18:54:40,428 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 365 transitions. Word has length 38 [2021-11-13 18:54:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:40,429 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 365 transitions. [2021-11-13 18:54:40,429 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) [2021-11-13 18:54:40,429 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 365 transitions. [2021-11-13 18:54:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:54:40,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:40,438 INFO L514 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] [2021-11-13 18:54:40,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:40,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:40,651 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:40,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-11-13 18:54:40,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:40,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758950881] [2021-11-13 18:54:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:40,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:40,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:40,653 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:40,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 18:54:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:40,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 18:54:40,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:41,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:54:41,654 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 [2021-11-13 18:54:42,337 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:54:42,337 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 [2021-11-13 18:54:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:42,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:54:42,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758950881] [2021-11-13 18:54:42,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758950881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:54:42,535 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:54:42,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-11-13 18:54:42,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934032565] [2021-11-13 18:54:42,535 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:54:42,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 18:54:42,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:54:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 18:54:42,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-13 18:54:42,537 INFO L87 Difference]: Start difference. First operand 302 states and 365 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) [2021-11-13 18:54:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:54:45,108 INFO L93 Difference]: Finished difference Result 300 states and 361 transitions. [2021-11-13 18:54:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:54:45,110 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 [2021-11-13 18:54:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:54:45,113 INFO L225 Difference]: With dead ends: 300 [2021-11-13 18:54:45,113 INFO L226 Difference]: Without dead ends: 300 [2021-11-13 18:54:45,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:54:45,115 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 976 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1980.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.80ms SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2244.29ms IncrementalHoareTripleChecker+Time [2021-11-13 18:54:45,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 556 Invalid, 789 Unknown, 0 Unchecked, 7.80ms Time], IncrementalHoareTripleChecker [160 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 2244.29ms Time] [2021-11-13 18:54:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-13 18:54:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-11-13 18:54:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 197 states have (on average 1.5634517766497462) internal successors, (308), 265 states have internal predecessors, (308), 34 states have call successors, (34), 20 states have call predecessors, (34), 16 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:54:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 361 transitions. [2021-11-13 18:54:45,148 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 361 transitions. Word has length 38 [2021-11-13 18:54:45,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:54:45,149 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 361 transitions. [2021-11-13 18:54:45,150 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) [2021-11-13 18:54:45,150 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 361 transitions. [2021-11-13 18:54:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-13 18:54:45,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:54:45,154 INFO L514 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] [2021-11-13 18:54:45,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 18:54:45,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:54:45,368 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-11-13 18:54:45,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:54:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-11-13 18:54:45,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:54:45,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506049937] [2021-11-13 18:54:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:54:45,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:54:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:54:45,370 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:54:45,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 18:54:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:54:45,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-13 18:54:45,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:54:45,787 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:54:45,788 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 [2021-11-13 18:54:45,983 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 [2021-11-13 18:54:46,042 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 [2021-11-13 18:54:46,351 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 [2021-11-13 18:54:46,597 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-13 18:54:46,598 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 [2021-11-13 18:54:46,727 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-13 18:54:46,728 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 [2021-11-13 18:54:50,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:54:50,898 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-11-13 18:54:50,898 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 [2021-11-13 18:54:51,179 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-13 18:54:51,179 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 [2021-11-13 18:54:51,637 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-13 18:54:51,637 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 [2021-11-13 18:54:52,125 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-13 18:54:52,126 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 102 treesize of output 75 [2021-11-13 18:54:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:54:52,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:55:04,149 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) 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|))))))))))))))))) is different from false [2021-11-13 18:55:06,189 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) 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)) (_ bv0 1)))) is different from false [2021-11-13 18:55:08,238 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_50 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_50))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_50 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_50) 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|))))))))))))))))))))))) is different from false [2021-11-13 18:55:08,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:55:08,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506049937] [2021-11-13 18:55:08,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-13 18:55:08,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1274383982] [2021-11-13 18:55:08,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:08,977 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 18:55:08,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/cvc4 [2021-11-13 18:55:08,983 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 18:55:09,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-13 18:55:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:09,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-13 18:55:09,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:55:09,596 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 [2021-11-13 18:55:09,702 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 [2021-11-13 18:55:10,687 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 [2021-11-13 18:55:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:55:11,459 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 [2021-11-13 18:55:11,723 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-13 18:55:11,723 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 [2021-11-13 18:55:12,246 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-13 18:55:12,246 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 27 treesize of output 38 [2021-11-13 18:55:12,797 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-13 18:55:12,798 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 115 treesize of output 60 [2021-11-13 18:55:13,762 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-13 18:55:13,763 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 [2021-11-13 18:55:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:55:14,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:55:26,844 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:55:26,845 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 3735 treesize of output 3693 [2021-11-13 18:55:56,504 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 760805 treesize of output 759781 [2021-11-13 18:55:58,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-13 18:55:58,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887696125] [2021-11-13 18:55:58,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:55:58,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:55:58,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:55:58,346 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:55:58,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-13 18:55:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:55:58,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-13 18:55:58,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:55:58,654 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-13 18:55:58,654 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 [2021-11-13 18:55:58,807 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 10 treesize of output 8 [2021-11-13 18:55:58,839 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 [2021-11-13 18:55:58,979 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 [2021-11-13 18:55:59,067 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-13 18:55:59,067 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 [2021-11-13 18:55:59,135 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-13 18:55:59,136 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 [2021-11-13 18:55:59,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:55:59,540 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-11-13 18:55:59,540 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 35 treesize of output 34 [2021-11-13 18:55:59,715 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-13 18:55:59,715 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 [2021-11-13 18:56:00,012 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-11-13 18:56:00,013 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 [2021-11-13 18:56:00,250 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-13 18:56:00,251 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 102 treesize of output 75 [2021-11-13 18:56:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:56:00,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:56:18,985 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_61 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_61 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61) 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_61))))) is different from false [2021-11-13 18:56:21,033 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_61 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_61 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_61) 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_61))))) is different from false [2021-11-13 18:56:21,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-13 18:56:21,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:56:21,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 18:56:21,630 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-13 18:56:21,630 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 18:56:21,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION (70 of 71 remaining) [2021-11-13 18:56:21,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-11-13 18:56:21,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-11-13 18:56:21,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION (67 of 71 remaining) [2021-11-13 18:56:21,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION (66 of 71 remaining) [2021-11-13 18:56:21,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION (65 of 71 remaining) [2021-11-13 18:56:21,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION (64 of 71 remaining) [2021-11-13 18:56:21,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION (63 of 71 remaining) [2021-11-13 18:56:21,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION (62 of 71 remaining) [2021-11-13 18:56:21,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION (61 of 71 remaining) [2021-11-13 18:56:21,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION (60 of 71 remaining) [2021-11-13 18:56:21,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION (59 of 71 remaining) [2021-11-13 18:56:21,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION (58 of 71 remaining) [2021-11-13 18:56:21,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION (57 of 71 remaining) [2021-11-13 18:56:21,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION (56 of 71 remaining) [2021-11-13 18:56:21,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION (55 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION (54 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION (53 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION (52 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION (51 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION (50 of 71 remaining) [2021-11-13 18:56:21,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION (49 of 71 remaining) [2021-11-13 18:56:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION (48 of 71 remaining) [2021-11-13 18:56:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION (47 of 71 remaining) [2021-11-13 18:56:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION (46 of 71 remaining) [2021-11-13 18:56:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION (45 of 71 remaining) [2021-11-13 18:56:21,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION (44 of 71 remaining) [2021-11-13 18:56:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION (43 of 71 remaining) [2021-11-13 18:56:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION (42 of 71 remaining) [2021-11-13 18:56:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION (41 of 71 remaining) [2021-11-13 18:56:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION (40 of 71 remaining) [2021-11-13 18:56:21,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION (39 of 71 remaining) [2021-11-13 18:56:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION (38 of 71 remaining) [2021-11-13 18:56:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION (37 of 71 remaining) [2021-11-13 18:56:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION (36 of 71 remaining) [2021-11-13 18:56:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION (35 of 71 remaining) [2021-11-13 18:56:21,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION (34 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION (33 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION (32 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION (31 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION (30 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION (29 of 71 remaining) [2021-11-13 18:56:21,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION (28 of 71 remaining) [2021-11-13 18:56:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION (27 of 71 remaining) [2021-11-13 18:56:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION (26 of 71 remaining) [2021-11-13 18:56:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION (25 of 71 remaining) [2021-11-13 18:56:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION (24 of 71 remaining) [2021-11-13 18:56:21,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK (23 of 71 remaining) [2021-11-13 18:56:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION (22 of 71 remaining) [2021-11-13 18:56:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION (21 of 71 remaining) [2021-11-13 18:56:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION (20 of 71 remaining) [2021-11-13 18:56:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION (19 of 71 remaining) [2021-11-13 18:56:21,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION (18 of 71 remaining) [2021-11-13 18:56:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION (17 of 71 remaining) [2021-11-13 18:56:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE (16 of 71 remaining) [2021-11-13 18:56:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE (15 of 71 remaining) [2021-11-13 18:56:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE (14 of 71 remaining) [2021-11-13 18:56:21,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION (13 of 71 remaining) [2021-11-13 18:56:21,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION (12 of 71 remaining) [2021-11-13 18:56:21,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION (11 of 71 remaining) [2021-11-13 18:56:21,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION (10 of 71 remaining) [2021-11-13 18:56:21,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION (9 of 71 remaining) [2021-11-13 18:56:21,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION (8 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION (7 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (6 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION (5 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION (4 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION (3 of 71 remaining) [2021-11-13 18:56:21,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION (2 of 71 remaining) [2021-11-13 18:56:21,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION (1 of 71 remaining) [2021-11-13 18:56:21,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION (0 of 71 remaining) [2021-11-13 18:56:21,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-13 18:56:21,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 18:56:22,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-13 18:56:22,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:56:22,259 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:56:22,263 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:56:22,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:56:22 BoogieIcfgContainer [2021-11-13 18:56:22,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:56:22,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:56:22,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:56:22,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:56:22,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:38" (3/4) ... [2021-11-13 18:56:22,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:56:22,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:56:22,283 INFO L158 Benchmark]: Toolchain (without parser) took 226088.08ms. Allocated memory was 58.7MB in the beginning and 257.9MB in the end (delta: 199.2MB). Free memory was 35.2MB in the beginning and 154.7MB in the end (delta: -119.5MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2021-11-13 18:56:22,284 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:56:22,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.52ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 34.9MB in the beginning and 55.4MB in the end (delta: -20.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-11-13 18:56:22,285 INFO L158 Benchmark]: Boogie Preprocessor took 141.33ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 50.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:56:22,285 INFO L158 Benchmark]: RCFGBuilder took 1474.98ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.8MB in the end (delta: 5.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2021-11-13 18:56:22,286 INFO L158 Benchmark]: TraceAbstraction took 223509.84ms. Allocated memory was 77.6MB in the beginning and 257.9MB in the end (delta: 180.4MB). Free memory was 44.4MB in the beginning and 154.7MB in the end (delta: -110.3MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. [2021-11-13 18:56:22,286 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 257.9MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:56:22,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 950.52ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 34.9MB in the beginning and 55.4MB in the end (delta: -20.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 141.33ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 50.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1474.98ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.8MB in the end (delta: 5.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 223509.84ms. Allocated memory was 77.6MB in the beginning and 257.9MB in the end (delta: 180.4MB). Free memory was 44.4MB in the beginning and 154.7MB in the end (delta: -110.3MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 257.9MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 223.4s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2889 SdHoareTripleChecker+Valid, 17021.34ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2874 mSDsluCounter, 15823 SdHoareTripleChecker+Invalid, 14991.04ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1920 IncrementalHoareTripleChecker+Unchecked, 12208 mSDsCounter, 296 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4511 IncrementalHoareTripleChecker+Invalid, 6727 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 296 mSolverCounterUnsat, 3615 mSDtfsCounter, 4511 mSolverCounterSat, 106.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 728 GetRequests, 527 SyntacticMatches, 41 SemanticMatches, 160 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 89.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=8, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 119 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 121.1s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 708 ConstructedInterpolants, 112 QuantifiedInterpolants, 8424 SizeOfPredicates, 167 NumberOfNonLiveVariables, 2708 ConjunctsInSsa, 236 ConjunctsInUnsatCore, 33 InterpolantComputations, 28 PerfectInterpolantSequences, 25/38 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 [2021-11-13 18:56:22,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2353ecd9-d137-49ba-adb4-60b19623f761/bin/uautomizer-YU5uOKAj3y/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