./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0137.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0137.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0137.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:34:14,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:34:14,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:34:14,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:34:14,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:34:14,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:34:14,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:34:14,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:34:14,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:34:14,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:34:14,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:34:14,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:34:14,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:34:14,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:34:14,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:34:14,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:34:14,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:34:14,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:34:14,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:34:14,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:34:14,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:34:14,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:34:14,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:34:14,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:34:14,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:34:14,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:34:14,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:34:14,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:34:14,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:34:14,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:34:14,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:34:14,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:34:14,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:34:14,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:34:14,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:34:14,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:34:14,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:34:14,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:34:14,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:34:14,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:34:14,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:34:14,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:34:14,805 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:34:14,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:34:14,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:34:14,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:34:14,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:34:14,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:34:14,809 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:34:14,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:34:14,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:34:14,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:34:14,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:34:14,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:34:14,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:34:14,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:34:14,813 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:34:14,813 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:34:14,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:34:14,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:34:14,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:34:14,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:34:14,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:34:14,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:34:14,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:34:14,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:14,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:34:14,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:34:14,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:34:14,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:34:14,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:34:14,821 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_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a [2021-10-21 19:34:15,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:34:15,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:34:15,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:34:15,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:34:15,162 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:34:15,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/memsafety/test-0137.i [2021-10-21 19:34:15,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/5ae1c9077/8a0cfc2938c84af0a1bc6737e7796fce/FLAGa7914f248 [2021-10-21 19:34:15,829 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:34:15,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/sv-benchmarks/c/memsafety/test-0137.i [2021-10-21 19:34:15,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/5ae1c9077/8a0cfc2938c84af0a1bc6737e7796fce/FLAGa7914f248 [2021-10-21 19:34:16,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/5ae1c9077/8a0cfc2938c84af0a1bc6737e7796fce [2021-10-21 19:34:16,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:34:16,116 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:34:16,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:16,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:34:16,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:34:16,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:16" (1/1) ... [2021-10-21 19:34:16,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65875c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:16, skipping insertion in model container [2021-10-21 19:34:16,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:16" (1/1) ... [2021-10-21 19:34:16,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:34:16,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:34:16,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:16,582 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 19:34:16,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6851b8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:16, skipping insertion in model container [2021-10-21 19:34:16,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:16,584 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:34:16,587 INFO L168 Benchmark]: Toolchain (without parser) took 469.32 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 67.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:16,588 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 71.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:16,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.51 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 67.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:16,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 71.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.51 ms. Allocated memory is still 96.5 MB. Free memory was 53.5 MB in the beginning and 67.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 585]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:34:18,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:34:18,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:34:19,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:34:19,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:34:19,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:34:19,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:34:19,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:34:19,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:34:19,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:34:19,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:34:19,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:34:19,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:34:19,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:34:19,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:34:19,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:34:19,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:34:19,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:34:19,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:34:19,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:34:19,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:34:19,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:34:19,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:34:19,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:34:19,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:34:19,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:34:19,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:34:19,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:34:19,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:34:19,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:34:19,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:34:19,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:34:19,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:34:19,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:34:19,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:34:19,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:34:19,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:34:19,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:34:19,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:34:19,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:34:19,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:34:19,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:34:19,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:34:19,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:34:19,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:34:19,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:34:19,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:34:19,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:34:19,142 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:34:19,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:34:19,143 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:34:19,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:34:19,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:34:19,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:34:19,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:34:19,144 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:34:19,144 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:34:19,144 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:34:19,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:34:19,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:34:19,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:34:19,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:34:19,145 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:34:19,145 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:34:19,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:34:19,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:34:19,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:34:19,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:19,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:34:19,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:34:19,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:34:19,153 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:34:19,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:34:19,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:34:19,154 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_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a [2021-10-21 19:34:19,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:34:19,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:34:19,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:34:19,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:34:19,550 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:34:19,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/memsafety/test-0137.i [2021-10-21 19:34:19,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/31ed92c25/51c726b363b143b1ad3435b0047d101f/FLAG7cd16bc35 [2021-10-21 19:34:20,290 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:34:20,291 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/sv-benchmarks/c/memsafety/test-0137.i [2021-10-21 19:34:20,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/31ed92c25/51c726b363b143b1ad3435b0047d101f/FLAG7cd16bc35 [2021-10-21 19:34:20,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/data/31ed92c25/51c726b363b143b1ad3435b0047d101f [2021-10-21 19:34:20,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:34:20,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:34:20,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:20,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:34:20,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:34:20,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:20" (1/1) ... [2021-10-21 19:34:20,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b60b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:20, skipping insertion in model container [2021-10-21 19:34:20,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:34:20" (1/1) ... [2021-10-21 19:34:20,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:34:20,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:34:21,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:21,100 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:34:21,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:34:21,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:21,188 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:34:21,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:34:21,281 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:34:21,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21 WrapperNode [2021-10-21 19:34:21,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:34:21,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:34:21,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:34:21,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:34:21,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:34:21,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:34:21,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:34:21,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:34:21,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (1/1) ... [2021-10-21 19:34:21,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:34:21,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:34:21,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:34:21,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:34:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:34:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:34:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:34:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-21 19:34:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:34:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:34:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:34:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:34:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:34:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-21 19:34:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-21 19:34:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-21 19:34:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:34:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:34:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:34:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:34:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:34:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:34:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:34:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:34:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:34:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:34:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:34:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:34:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:34:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:34:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:34:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:34:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:34:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:34:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:34:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:34:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:34:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:34:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:34:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:34:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:34:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:34:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:34:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:34:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:34:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:34:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:34:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:34:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:34:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:34:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:34:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:34:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:34:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:34:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:34:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:34:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:34:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:34:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:34:21,585 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:34:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:34:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:34:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:34:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:34:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:34:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:34:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:34:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:34:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:34:21,593 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:34:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:34:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:34:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:34:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:34:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-21 19:34:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-21 19:34:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-21 19:34:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:34:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure gl_seek_max [2021-10-21 19:34:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-21 19:34:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:34:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:34:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:34:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:34:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:34:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:34:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 19:34:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-21 19:34:22,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:34:22,807 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 19:34:22,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:22 BoogieIcfgContainer [2021-10-21 19:34:22,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:34:22,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:34:22,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:34:22,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:34:22,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:34:20" (1/3) ... [2021-10-21 19:34:22,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6812f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:22, skipping insertion in model container [2021-10-21 19:34:22,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:34:21" (2/3) ... [2021-10-21 19:34:22,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6812f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:34:22, skipping insertion in model container [2021-10-21 19:34:22,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:22" (3/3) ... [2021-10-21 19:34:22,818 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0137.i [2021-10-21 19:34:22,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:34:22,825 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-10-21 19:34:22,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:34:22,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:34:22,884 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-10-21 19:34:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 85 states have (on average 1.8235294117647058) internal successors, (155), 145 states have internal predecessors, (155), 16 states have call successors, (16), 13 states have call predecessors, (16), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-21 19:34:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:34:22,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:22,915 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:22,915 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:34:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:22,922 INFO L82 PathProgramCache]: Analyzing trace with hash 584488031, now seen corresponding path program 1 times [2021-10-21 19:34:22,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:22,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997494753] [2021-10-21 19:34:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:22,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:22,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:34:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:23,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:34:23,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:23,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:23,322 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:23,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997494753] [2021-10-21 19:34:23,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997494753] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:23,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:23,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:34:23,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621711595] [2021-10-21 19:34:23,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:34:23,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:23,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:34:23,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:23,350 INFO L87 Difference]: Start difference. First operand has 174 states, 85 states have (on average 1.8235294117647058) internal successors, (155), 145 states have internal predecessors, (155), 16 states have call successors, (16), 13 states have call predecessors, (16), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:23,381 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2021-10-21 19:34:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:34:23,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:34:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:23,395 INFO L225 Difference]: With dead ends: 165 [2021-10-21 19:34:23,395 INFO L226 Difference]: Without dead ends: 162 [2021-10-21 19:34:23,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:34:23,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-21 19:34:23,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-10-21 19:34:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 78 states have (on average 1.794871794871795) internal successors, (140), 135 states have internal predecessors, (140), 16 states have call successors, (16), 13 states have call predecessors, (16), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:34:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2021-10-21 19:34:23,455 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 10 [2021-10-21 19:34:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:23,455 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2021-10-21 19:34:23,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2021-10-21 19:34:23,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:34:23,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:23,456 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:23,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:34:23,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:23,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:34:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash 584488093, now seen corresponding path program 1 times [2021-10-21 19:34:23,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:23,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500413130] [2021-10-21 19:34:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:23,675 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:23,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:23,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:23,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:34:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:23,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:34:23,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:23,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:34:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:23,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:24,015 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:24,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500413130] [2021-10-21 19:34:24,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500413130] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:24,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:24,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:34:24,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679825406] [2021-10-21 19:34:24,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:34:24,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:34:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:34:24,028 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:24,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:24,319 INFO L93 Difference]: Finished difference Result 161 states and 170 transitions. [2021-10-21 19:34:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:34:24,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:34:24,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:24,325 INFO L225 Difference]: With dead ends: 161 [2021-10-21 19:34:24,325 INFO L226 Difference]: Without dead ends: 161 [2021-10-21 19:34:24,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:34:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-21 19:34:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-10-21 19:34:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 134 states have internal predecessors, (139), 16 states have call successors, (16), 13 states have call predecessors, (16), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:34:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2021-10-21 19:34:24,357 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 10 [2021-10-21 19:34:24,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:24,358 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2021-10-21 19:34:24,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:24,359 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2021-10-21 19:34:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:34:24,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:24,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:24,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:34:24,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:24,571 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:34:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:24,571 INFO L82 PathProgramCache]: Analyzing trace with hash 584488094, now seen corresponding path program 1 times [2021-10-21 19:34:24,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:24,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372559920] [2021-10-21 19:34:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:24,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:24,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:24,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:34:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:24,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:34:24,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:24,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:34:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:24,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:24,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:24,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372559920] [2021-10-21 19:34:24,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372559920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:24,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:24,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-21 19:34:24,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088743252] [2021-10-21 19:34:24,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:34:24,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:34:24,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:34:24,931 INFO L87 Difference]: Start difference. First operand 161 states and 170 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:25,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:25,477 INFO L93 Difference]: Finished difference Result 160 states and 169 transitions. [2021-10-21 19:34:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:34:25,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:34:25,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:25,479 INFO L225 Difference]: With dead ends: 160 [2021-10-21 19:34:25,480 INFO L226 Difference]: Without dead ends: 160 [2021-10-21 19:34:25,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:34:25,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-21 19:34:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-21 19:34:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 133 states have internal predecessors, (138), 16 states have call successors, (16), 13 states have call predecessors, (16), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:34:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 169 transitions. [2021-10-21 19:34:25,494 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 169 transitions. Word has length 10 [2021-10-21 19:34:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:25,494 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 169 transitions. [2021-10-21 19:34:25,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:34:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 169 transitions. [2021-10-21 19:34:25,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:34:25,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:25,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:25,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:34:25,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:25,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:34:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash 687588142, now seen corresponding path program 1 times [2021-10-21 19:34:25,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:25,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233305580] [2021-10-21 19:34:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:25,714 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:25,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:25,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:25,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:34:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:25,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:34:25,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:26,010 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:34:26,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:34:26,317 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-21 19:34:26,318 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 23 treesize of output 30 [2021-10-21 19:34:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:26,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:46,992 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:46,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233305580] [2021-10-21 19:34:46,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233305580] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:46,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:46,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:34:46,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612022748] [2021-10-21 19:34:46,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:34:46,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:34:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-21 19:34:46,995 INFO L87 Difference]: Start difference. First operand 160 states and 169 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:34:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:34:48,265 INFO L93 Difference]: Finished difference Result 188 states and 198 transitions. [2021-10-21 19:34:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:34:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:34:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:34:48,268 INFO L225 Difference]: With dead ends: 188 [2021-10-21 19:34:48,268 INFO L226 Difference]: Without dead ends: 188 [2021-10-21 19:34:48,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 20441.6ms TimeCoverageRelationStatistics Valid=45, Invalid=85, Unknown=2, NotChecked=0, Total=132 [2021-10-21 19:34:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-21 19:34:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2021-10-21 19:34:48,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 140 states have internal predecessors, (147), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2021-10-21 19:34:48,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 184 transitions. [2021-10-21 19:34:48,286 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 184 transitions. Word has length 13 [2021-10-21 19:34:48,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:34:48,287 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 184 transitions. [2021-10-21 19:34:48,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:34:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 184 transitions. [2021-10-21 19:34:48,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:34:48,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:34:48,288 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:34:48,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:34:48,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:34:48,497 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:34:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:34:48,498 INFO L82 PathProgramCache]: Analyzing trace with hash 687588143, now seen corresponding path program 1 times [2021-10-21 19:34:48,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:34:48,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485664080] [2021-10-21 19:34:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:34:48,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:34:48,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:34:48,500 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:34:48,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:34:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:34:48,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:34:48,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:34:48,827 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:34:48,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-21 19:34:48,901 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:34:48,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-21 19:34:49,400 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-21 19:34:49,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 65 [2021-10-21 19:34:49,437 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:34:49,437 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 65 treesize of output 72 [2021-10-21 19:34:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:50,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:34:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:34:57,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:34:57,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485664080] [2021-10-21 19:34:57,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485664080] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:34:57,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:34:57,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-21 19:34:57,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722098339] [2021-10-21 19:34:57,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:34:57,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:34:57,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:34:57,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-21 19:34:57,960 INFO L87 Difference]: Start difference. First operand 171 states and 184 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:35:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:06,695 INFO L93 Difference]: Finished difference Result 224 states and 231 transitions. [2021-10-21 19:35:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:35:06,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:35:06,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:06,698 INFO L225 Difference]: With dead ends: 224 [2021-10-21 19:35:06,698 INFO L226 Difference]: Without dead ends: 224 [2021-10-21 19:35:06,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 13705.0ms TimeCoverageRelationStatistics Valid=67, Invalid=141, Unknown=2, NotChecked=0, Total=210 [2021-10-21 19:35:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-21 19:35:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 185. [2021-10-21 19:35:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 152 states have internal predecessors, (173), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2021-10-21 19:35:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 209 transitions. [2021-10-21 19:35:06,713 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 209 transitions. Word has length 13 [2021-10-21 19:35:06,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:06,714 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 209 transitions. [2021-10-21 19:35:06,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:35:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 209 transitions. [2021-10-21 19:35:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:35:06,715 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:06,715 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:06,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:35:06,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:35:06,926 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:35:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1239538309, now seen corresponding path program 1 times [2021-10-21 19:35:06,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:35:06,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378914283] [2021-10-21 19:35:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:06,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:35:06,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:35:06,927 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:35:06,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:35:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:07,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-21 19:35:07,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:35:07,296 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:35:07,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:35:07,646 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:35:07,647 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 15 treesize of output 15 [2021-10-21 19:35:07,773 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:35:07,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-21 19:35:07,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-21 19:35:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:07,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:35:08,021 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-21 19:35:08,021 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 27 treesize of output 26 [2021-10-21 19:35:10,107 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)) is different from false [2021-10-21 19:35:12,182 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_13 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_13))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)))) is different from false [2021-10-21 19:35:14,240 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_13 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_13))))) (= (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|))) is different from false [2021-10-21 19:35:16,295 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_13 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_13)))))) (= (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|))) is different from false [2021-10-21 19:35:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:16,559 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:35:16,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378914283] [2021-10-21 19:35:16,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378914283] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:16,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:16,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-21 19:35:16,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864613847] [2021-10-21 19:35:16,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:35:16,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:35:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:35:16,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=75, Unknown=4, NotChecked=76, Total=182 [2021-10-21 19:35:16,562 INFO L87 Difference]: Start difference. First operand 185 states and 209 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:35:22,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:22,006 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2021-10-21 19:35:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:35:22,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:35:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:22,009 INFO L225 Difference]: With dead ends: 208 [2021-10-21 19:35:22,009 INFO L226 Difference]: Without dead ends: 208 [2021-10-21 19:35:22,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 12562.7ms TimeCoverageRelationStatistics Valid=77, Invalid=241, Unknown=4, NotChecked=140, Total=462 [2021-10-21 19:35:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-21 19:35:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2021-10-21 19:35:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 116 states have (on average 1.646551724137931) internal successors, (191), 163 states have internal predecessors, (191), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:35:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 233 transitions. [2021-10-21 19:35:22,021 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 233 transitions. Word has length 16 [2021-10-21 19:35:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:22,022 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 233 transitions. [2021-10-21 19:35:22,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:35:22,022 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 233 transitions. [2021-10-21 19:35:22,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:35:22,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:22,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:22,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:35:22,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:35:22,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:35:22,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:22,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1239538310, now seen corresponding path program 1 times [2021-10-21 19:35:22,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:35:22,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940786716] [2021-10-21 19:35:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:22,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:35:22,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:35:22,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:35:22,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:35:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:22,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:35:22,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:35:22,652 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:35:22,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-21 19:35:22,711 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:35:22,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-21 19:35:23,317 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:35:23,317 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 47 treesize of output 54 [2021-10-21 19:35:23,354 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-21 19:35:23,355 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 51 treesize of output 67 [2021-10-21 19:35:23,861 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:35:23,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-21 19:35:23,938 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:35:23,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-21 19:35:24,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-21 19:35:24,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-21 19:35:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:24,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:35:53,771 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14)))))))) (_ bv0 1))))) is different from false [2021-10-21 19:35:55,964 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))))))))))))) is different from false [2021-10-21 19:35:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:56,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:35:56,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940786716] [2021-10-21 19:35:56,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940786716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:56,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:56,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 19 [2021-10-21 19:35:56,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740494262] [2021-10-21 19:35:56,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-21 19:35:56,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:35:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-21 19:35:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=260, Unknown=5, NotChecked=66, Total=380 [2021-10-21 19:35:56,524 INFO L87 Difference]: Start difference. First operand 200 states and 233 transitions. Second operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:36:18,974 WARN L207 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 93 DAG size of output: 37 [2021-10-21 19:36:51,724 WARN L207 SmtUtils]: Spent 10.17 s on a formula simplification. DAG size of input: 91 DAG size of output: 37 [2021-10-21 19:36:56,319 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse1 (bvadd .cse0 (_ bv8 32)))) (and (exists ((gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| gl_insert_~node~0.base) (_ bv12 32))) (= (_ bv8 32) (select |c_#length| |c___list_add_#in~next.base|)) (= (_ bv0 32) |c___list_add_#in~next.offset|) (= c___list_add_~next.offset (_ bv0 32)) (= (_ bv8 32) (select |c_#length| c___list_add_~next.base)) (bvule (bvadd (_ bv4 32) .cse0) .cse1) (bvule .cse1 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse2 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse3 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse4 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse2 v_DerPreprocessor_10) .cse3 v_DerPreprocessor_11) .cse4 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse2 v_DerPreprocessor_6) .cse3 v_DerPreprocessor_7) .cse4 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse5 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse5) (bvadd (_ bv8 32) .cse5)))))))))) is different from false [2021-10-21 19:37:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:09,699 INFO L93 Difference]: Finished difference Result 207 states and 233 transitions. [2021-10-21 19:37:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:37:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:37:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:09,702 INFO L225 Difference]: With dead ends: 207 [2021-10-21 19:37:09,702 INFO L226 Difference]: Without dead ends: 207 [2021-10-21 19:37:09,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 88570.9ms TimeCoverageRelationStatistics Valid=137, Invalid=501, Unknown=24, NotChecked=150, Total=812 [2021-10-21 19:37:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-21 19:37:09,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 200. [2021-10-21 19:37:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 116 states have (on average 1.6379310344827587) internal successors, (190), 163 states have internal predecessors, (190), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 232 transitions. [2021-10-21 19:37:09,713 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 232 transitions. Word has length 16 [2021-10-21 19:37:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:09,713 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 232 transitions. [2021-10-21 19:37:09,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:37:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 232 transitions. [2021-10-21 19:37:09,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:37:09,715 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:09,715 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:09,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:37:09,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:09,918 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:09,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:09,918 INFO L82 PathProgramCache]: Analyzing trace with hash -229018017, now seen corresponding path program 1 times [2021-10-21 19:37:09,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:09,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108297321] [2021-10-21 19:37:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:09,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:09,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:09,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:09,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:37:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:10,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:37:10,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:10,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:37:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:10,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:10,463 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:10,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108297321] [2021-10-21 19:37:10,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108297321] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:10,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:10,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-21 19:37:10,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431066054] [2021-10-21 19:37:10,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:37:10,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:10,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:37:10,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:37:10,465 INFO L87 Difference]: Start difference. First operand 200 states and 232 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:11,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:11,346 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2021-10-21 19:37:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:37:11,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:37:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:11,349 INFO L225 Difference]: With dead ends: 205 [2021-10-21 19:37:11,349 INFO L226 Difference]: Without dead ends: 205 [2021-10-21 19:37:11,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:37:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-21 19:37:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 199. [2021-10-21 19:37:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 116 states have (on average 1.5948275862068966) internal successors, (185), 162 states have internal predecessors, (185), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2021-10-21 19:37:11,360 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 17 [2021-10-21 19:37:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:11,360 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2021-10-21 19:37:11,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2021-10-21 19:37:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:37:11,362 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:11,362 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:11,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:37:11,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:11,578 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:11,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:11,578 INFO L82 PathProgramCache]: Analyzing trace with hash -229018016, now seen corresponding path program 1 times [2021-10-21 19:37:11,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:11,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147237827] [2021-10-21 19:37:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:11,579 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:11,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:11,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:37:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:11,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:37:11,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:11,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:37:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:12,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:12,688 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:12,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147237827] [2021-10-21 19:37:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147237827] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:12,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:12,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-21 19:37:12,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245015123] [2021-10-21 19:37:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:37:12,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:37:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:37:12,690 INFO L87 Difference]: Start difference. First operand 199 states and 227 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:14,795 INFO L93 Difference]: Finished difference Result 203 states and 223 transitions. [2021-10-21 19:37:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:37:14,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:37:14,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:14,799 INFO L225 Difference]: With dead ends: 203 [2021-10-21 19:37:14,799 INFO L226 Difference]: Without dead ends: 203 [2021-10-21 19:37:14,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 600.5ms TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:37:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-21 19:37:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-10-21 19:37:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 116 states have (on average 1.5603448275862069) internal successors, (181), 162 states have internal predecessors, (181), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 223 transitions. [2021-10-21 19:37:14,811 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 223 transitions. Word has length 17 [2021-10-21 19:37:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:14,811 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 223 transitions. [2021-10-21 19:37:14,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 223 transitions. [2021-10-21 19:37:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:37:14,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:14,813 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:14,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-21 19:37:15,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:15,018 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:15,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1042979966, now seen corresponding path program 1 times [2021-10-21 19:37:15,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:15,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597376808] [2021-10-21 19:37:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:15,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:15,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:15,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:15,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:37:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:15,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:37:15,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:15,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:15,463 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:15,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597376808] [2021-10-21 19:37:15,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597376808] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:15,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:15,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:37:15,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942474452] [2021-10-21 19:37:15,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:37:15,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:15,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:37:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:37:15,465 INFO L87 Difference]: Start difference. First operand 199 states and 223 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:15,922 INFO L93 Difference]: Finished difference Result 198 states and 220 transitions. [2021-10-21 19:37:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:37:15,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-21 19:37:15,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:15,925 INFO L225 Difference]: With dead ends: 198 [2021-10-21 19:37:15,926 INFO L226 Difference]: Without dead ends: 198 [2021-10-21 19:37:15,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:37:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-21 19:37:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-10-21 19:37:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 116 states have (on average 1.5344827586206897) internal successors, (178), 161 states have internal predecessors, (178), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2021-10-21 19:37:15,936 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 19 [2021-10-21 19:37:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:15,937 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2021-10-21 19:37:15,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:37:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2021-10-21 19:37:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:37:15,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:15,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:15,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:37:16,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:16,153 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1042979965, now seen corresponding path program 1 times [2021-10-21 19:37:16,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033173827] [2021-10-21 19:37:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:16,154 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:16,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:16,155 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:16,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-21 19:37:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:16,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:37:16,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:16,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:16,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:37:17,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:17,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:17,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033173827] [2021-10-21 19:37:17,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033173827] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:17,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:17,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-21 19:37:17,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293150204] [2021-10-21 19:37:17,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:37:17,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:37:17,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:37:17,203 INFO L87 Difference]: Start difference. First operand 198 states and 220 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:37:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:18,935 INFO L93 Difference]: Finished difference Result 199 states and 217 transitions. [2021-10-21 19:37:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:37:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-21 19:37:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:18,938 INFO L225 Difference]: With dead ends: 199 [2021-10-21 19:37:18,938 INFO L226 Difference]: Without dead ends: 199 [2021-10-21 19:37:18,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 816.6ms TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:37:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-21 19:37:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2021-10-21 19:37:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 160 states have internal predecessors, (175), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2021-10-21 19:37:18,947 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 19 [2021-10-21 19:37:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:18,948 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2021-10-21 19:37:18,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:37:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2021-10-21 19:37:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:37:18,950 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:18,950 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:18,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-21 19:37:19,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:19,157 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting list_emptyErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:19,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:19,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1130114392, now seen corresponding path program 1 times [2021-10-21 19:37:19,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:19,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433186143] [2021-10-21 19:37:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:19,168 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:19,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:19,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:19,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-21 19:37:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:19,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:37:19,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:19,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:20,076 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 19:37:20,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:37:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:20,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:20,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433186143] [2021-10-21 19:37:20,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433186143] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:20,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:20,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-21 19:37:20,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853586366] [2021-10-21 19:37:20,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:37:20,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:37:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:37:20,105 INFO L87 Difference]: Start difference. First operand 197 states and 217 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:37:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:21,055 INFO L93 Difference]: Finished difference Result 196 states and 215 transitions. [2021-10-21 19:37:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:37:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-10-21 19:37:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:21,058 INFO L225 Difference]: With dead ends: 196 [2021-10-21 19:37:21,058 INFO L226 Difference]: Without dead ends: 196 [2021-10-21 19:37:21,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 187.4ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:37:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-21 19:37:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-10-21 19:37:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 116 states have (on average 1.4913793103448276) internal successors, (173), 159 states have internal predecessors, (173), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 215 transitions. [2021-10-21 19:37:21,068 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 215 transitions. Word has length 34 [2021-10-21 19:37:21,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:21,069 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 215 transitions. [2021-10-21 19:37:21,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:37:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 215 transitions. [2021-10-21 19:37:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:37:21,071 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:21,071 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:21,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:37:21,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:21,289 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting list_emptyErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:21,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1130114391, now seen corresponding path program 1 times [2021-10-21 19:37:21,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:21,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077862324] [2021-10-21 19:37:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:21,290 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:21,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:21,291 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:21,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-21 19:37:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:21,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:37:21,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:22,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:22,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:22,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:37:23,160 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:37:23,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-10-21 19:37:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:23,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:23,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077862324] [2021-10-21 19:37:23,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077862324] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:37:23,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:37:23,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-21 19:37:23,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044325344] [2021-10-21 19:37:23,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:37:23,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:37:23,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:37:23,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:37:23,377 INFO L87 Difference]: Start difference. First operand 196 states and 215 transitions. Second operand has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:37:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:37:25,844 INFO L93 Difference]: Finished difference Result 195 states and 213 transitions. [2021-10-21 19:37:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:37:25,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 34 [2021-10-21 19:37:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:37:25,847 INFO L225 Difference]: With dead ends: 195 [2021-10-21 19:37:25,847 INFO L226 Difference]: Without dead ends: 195 [2021-10-21 19:37:25,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 884.5ms TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-10-21 19:37:25,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-21 19:37:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-10-21 19:37:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 116 states have (on average 1.4741379310344827) internal successors, (171), 158 states have internal predecessors, (171), 21 states have call successors, (21), 20 states have call predecessors, (21), 18 states have return successors, (21), 17 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-21 19:37:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2021-10-21 19:37:25,856 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 34 [2021-10-21 19:37:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:37:25,857 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2021-10-21 19:37:25,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:37:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2021-10-21 19:37:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:37:25,858 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:37:25,859 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:37:25,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-21 19:37:26,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:37:26,072 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-21 19:37:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:37:26,072 INFO L82 PathProgramCache]: Analyzing trace with hash 853907176, now seen corresponding path program 1 times [2021-10-21 19:37:26,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:37:26,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774490491] [2021-10-21 19:37:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:26,074 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:37:26,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:37:26,075 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:37:26,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-21 19:37:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:26,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-21 19:37:26,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:26,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:37:26,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:37:27,314 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-21 19:37:27,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 60 [2021-10-21 19:37:27,548 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:37:27,548 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 83 treesize of output 34 [2021-10-21 19:37:27,934 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 64 treesize of output 52 [2021-10-21 19:37:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:28,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:37:42,213 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_gl_insert_~node~0.base_30 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_30)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_30 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_30 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_30) gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))) (_ bv1 1))))) is different from false [2021-10-21 19:37:43,037 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:37:43,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774490491] [2021-10-21 19:37:43,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:37:43,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1243496801] [2021-10-21 19:37:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:37:43,039 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:37:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:37:43,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:37:43,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-21 19:37:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:37:43,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 19:37:43,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:37:43,824 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 7 treesize of output 3 [2021-10-21 19:37:43,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:37:44,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:37:45,619 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-21 19:37:45,620 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 25 treesize of output 36 [2021-10-21 19:37:45,955 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:37:45,957 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 86 treesize of output 37 [2021-10-21 19:37:46,727 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 46 treesize of output 34 [2021-10-21 19:37:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:37:48,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:38:00,109 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:38:00,110 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 14218 treesize of output 13816 [2021-10-21 19:38:00,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:38:00,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642940789] [2021-10-21 19:38:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:38:00,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:38:00,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:38:00,746 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:38:00,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-21 19:38:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:38:01,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-21 19:38:01,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:38:01,313 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:38:01,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-21 19:38:02,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 19:38:02,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:38:02,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:38:03,007 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-21 19:38:03,007 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 19 treesize of output 24 [2021-10-21 19:38:03,192 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-21 19:38:03,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 61 [2021-10-21 19:38:03,397 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:38:03,398 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 84 treesize of output 35 [2021-10-21 19:38:03,669 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 64 treesize of output 52 [2021-10-21 19:38:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:38:04,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:38:14,777 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_gl_insert_~node~0.base_41 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_41 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41) gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_41)))))) is different from false [2021-10-21 19:38:16,851 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_gl_insert_~node~0.base_41 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_41)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_41 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41) gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))) (_ bv1 1))))) is different from false [2021-10-21 19:38:50,438 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 46185 treesize of output 46057 [2021-10-21 19:38:50,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:38:50,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:38:50,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 19:38:50,654 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 19:38:50,655 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 19:38:50,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-21 19:38:50,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-21 19:38:50,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:38:50,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:38:50,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:38:50,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-21 19:38:50,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-21 19:38:50,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-21 19:38:50,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-21 19:38:50,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:38:50,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr4REQUIRES_VIOLATION [2021-10-21 19:38:50,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr5REQUIRES_VIOLATION [2021-10-21 19:38:50,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr6REQUIRES_VIOLATION [2021-10-21 19:38:50,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr7REQUIRES_VIOLATION [2021-10-21 19:38:50,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr4REQUIRES_VIOLATION [2021-10-21 19:38:50,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr5REQUIRES_VIOLATION [2021-10-21 19:38:50,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr6REQUIRES_VIOLATION [2021-10-21 19:38:50,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr7REQUIRES_VIOLATION [2021-10-21 19:38:50,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr8REQUIRES_VIOLATION [2021-10-21 19:38:50,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr9REQUIRES_VIOLATION [2021-10-21 19:38:50,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr10REQUIRES_VIOLATION [2021-10-21 19:38:50,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr11REQUIRES_VIOLATION [2021-10-21 19:38:50,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr12REQUIRES_VIOLATION [2021-10-21 19:38:50,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr13REQUIRES_VIOLATION [2021-10-21 19:38:50,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr14REQUIRES_VIOLATION [2021-10-21 19:38:50,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr15REQUIRES_VIOLATION [2021-10-21 19:38:50,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr0REQUIRES_VIOLATION [2021-10-21 19:38:50,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr1REQUIRES_VIOLATION [2021-10-21 19:38:50,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr2REQUIRES_VIOLATION [2021-10-21 19:38:50,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr3REQUIRES_VIOLATION [2021-10-21 19:38:50,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr4REQUIRES_VIOLATION [2021-10-21 19:38:50,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr5REQUIRES_VIOLATION [2021-10-21 19:38:50,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:38:50,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-21 19:38:51,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:38:51,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:38:51,301 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:38:51,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:38:51 BoogieIcfgContainer [2021-10-21 19:38:51,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:38:51,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:38:51,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:38:51,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:38:51,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:34:22" (3/4) ... [2021-10-21 19:38:51,321 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:38:51,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:38:51,323 INFO L168 Benchmark]: Toolchain (without parser) took 270766.35 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 52.7 MB in the beginning and 54.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:38:51,324 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 70.4 MB in the beginning and 70.4 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:38:51,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.32 ms. Allocated memory is still 88.1 MB. Free memory was 52.5 MB in the beginning and 59.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:38:51,325 INFO L168 Benchmark]: Boogie Preprocessor took 167.95 ms. Allocated memory is still 88.1 MB. Free memory was 59.0 MB in the beginning and 55.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:38:51,326 INFO L168 Benchmark]: RCFGBuilder took 1358.02 ms. Allocated memory is still 88.1 MB. Free memory was 55.1 MB in the beginning and 48.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:38:51,327 INFO L168 Benchmark]: TraceAbstraction took 268503.48 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 47.3 MB in the beginning and 54.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:38:51,327 INFO L168 Benchmark]: Witness Printer took 6.31 ms. Allocated memory is still 130.0 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:38:51,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 70.4 MB in the beginning and 70.4 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 718.32 ms. Allocated memory is still 88.1 MB. Free memory was 52.5 MB in the beginning and 59.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 167.95 ms. Allocated memory is still 88.1 MB. Free memory was 59.0 MB in the beginning and 55.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1358.02 ms. Allocated memory is still 88.1 MB. Free memory was 55.1 MB in the beginning and 48.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 268503.48 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 47.3 MB in the beginning and 54.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.31 ms. Allocated memory is still 130.0 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 535]: 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: [L564] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L625] CALL gl_read() [L576] CALL gl_insert(__VERIFIER_nondet_int()) [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L571] CALL list_add(&node->linkage, &gl_list) [L547] EXPR head->next [L547] CALL __list_add(new, head, head->next) [L535] next->prev = new [L536] new->next = next [L537] new->prev = prev [L538] prev->next = new [L547] RET __list_add(new, head, head->next) [L571] RET list_add(&node->linkage, &gl_list) [L576] RET gl_insert(__VERIFIER_nondet_int()) [L578] COND TRUE __VERIFIER_nondet_int() [L576] CALL gl_insert(__VERIFIER_nondet_int()) [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L571] CALL list_add(&node->linkage, &gl_list) [L547] EXPR head->next [L547] CALL __list_add(new, head, head->next) [L535] next->prev = new - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 620]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 620]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 620]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 620]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 621]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 599]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 599]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 602]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 602]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 602]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 602]: 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 22 procedures, 206 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 268424.1ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 24.9ms, AutomataDifference: 98178.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1764 SDtfs, 1711 SDslu, 6384 SDs, 0 SdLazy, 4363 SolverSat, 291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25611.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 495 GetRequests, 320 SyntacticMatches, 30 SemanticMatches, 145 ConstructedPredicates, 7 IntricatePredicates, 2 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 138004.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=6, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 197.5ms AutomataMinimizationTime, 13 MinimizatonAttempts, 83 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 174.8ms SsaConstructionTime, 753.7ms SatisfiabilityAnalysisTime, 78683.7ms InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 430 ConstructedInterpolants, 51 QuantifiedInterpolants, 4942 SizeOfPredicates, 117 NumberOfNonLiveVariables, 1779 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:38:51,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d7b82-97e6-4749-a06d-d6bf4eba7fa3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...