./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0137.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD --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_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0137.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD --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-b2eff8b [2021-10-28 23:47:51,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:47:51,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:47:51,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:47:51,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:47:51,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:47:51,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:47:51,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:47:51,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:47:51,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:47:51,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:47:51,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:47:51,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:47:51,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:47:51,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:47:51,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:47:51,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:47:51,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:47:51,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:47:51,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:47:51,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:47:51,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:47:51,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:47:51,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:47:51,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:47:51,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:47:51,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:47:51,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:47:51,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:47:51,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:47:51,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:47:51,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:47:51,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:47:51,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:47:51,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:47:51,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:47:51,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:47:51,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:47:51,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:47:51,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:47:51,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:47:51,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:47:51,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:47:51,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:47:51,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:47:51,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:47:51,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:47:51,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:47:51,866 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:47:51,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:47:51,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:47:51,867 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:47:51,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:47:51,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:47:51,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:47:51,868 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:47:51,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:47:51,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:47:51,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:47:51,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:47:51,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:47:51,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:47:51,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:47:51,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:47:51,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:47:51,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:47:51,871 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_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a [2021-10-28 23:47:52,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:47:52,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:47:52,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:47:52,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:47:52,158 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:47:52,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0137.i [2021-10-28 23:47:52,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/a723aadf1/521db0a1959240218cc5611708368f2f/FLAGab32f9b59 [2021-10-28 23:47:52,858 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:47:52,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/sv-benchmarks/c/memsafety/test-0137.i [2021-10-28 23:47:52,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/a723aadf1/521db0a1959240218cc5611708368f2f/FLAGab32f9b59 [2021-10-28 23:47:53,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/a723aadf1/521db0a1959240218cc5611708368f2f [2021-10-28 23:47:53,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:47:53,089 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:47:53,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:53,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:47:53,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:47:53,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:53" (1/1) ... [2021-10-28 23:47:53,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c0d3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:53, skipping insertion in model container [2021-10-28 23:47:53,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:53" (1/1) ... [2021-10-28 23:47:53,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:47:53,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:47:53,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:53,630 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) [2021-10-28 23:47:53,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18e074ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:53, skipping insertion in model container [2021-10-28 23:47:53,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:53,632 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:47:53,635 INFO L168 Benchmark]: Toolchain (without parser) took 544.20 ms. Allocated memory is still 123.7 MB. Free memory was 88.5 MB in the beginning and 96.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:47:53,637 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:47:53,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.39 ms. Allocated memory is still 123.7 MB. Free memory was 88.5 MB in the beginning and 96.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:47:53,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.39 ms. Allocated memory is still 123.7 MB. Free memory was 88.5 MB in the beginning and 96.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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-b2eff8b [2021-10-28 23:47:56,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:47:56,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:47:56,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:47:56,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:47:56,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:47:56,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:47:56,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:47:56,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:47:56,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:47:56,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:47:56,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:47:56,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:47:56,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:47:56,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:47:56,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:47:56,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:47:56,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:47:56,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:47:56,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:47:56,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:47:56,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:47:56,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:47:56,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:47:56,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:47:56,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:47:56,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:47:56,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:47:56,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:47:56,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:47:56,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:47:56,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:47:56,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:47:56,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:47:56,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:47:56,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:47:56,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:47:56,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:47:56,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:47:56,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:47:56,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:47:56,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:47:56,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:47:56,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:47:56,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:47:56,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:47:56,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:47:56,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:47:56,230 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:47:56,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:47:56,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:47:56,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:47:56,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:47:56,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:47:56,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:47:56,234 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:47:56,234 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:47:56,234 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:47:56,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:47:56,235 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:47:56,235 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:47:56,235 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:47:56,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:47:56,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:47:56,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:47:56,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:47:56,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:47:56,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:47:56,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:47:56,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:47:56,238 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:47:56,238 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:47:56,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:47:56,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:47:56,239 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_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a [2021-10-28 23:47:56,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:47:56,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:47:56,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:47:56,625 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:47:56,626 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:47:56,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0137.i [2021-10-28 23:47:56,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/2fbfc345f/c2310b699314476794095fcfaa3eecaa/FLAGc9c80c17d [2021-10-28 23:47:57,370 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:47:57,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/sv-benchmarks/c/memsafety/test-0137.i [2021-10-28 23:47:57,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/2fbfc345f/c2310b699314476794095fcfaa3eecaa/FLAGc9c80c17d [2021-10-28 23:47:57,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/data/2fbfc345f/c2310b699314476794095fcfaa3eecaa [2021-10-28 23:47:57,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:47:57,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:47:57,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:57,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:47:57,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:47:57,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:57" (1/1) ... [2021-10-28 23:47:57,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6b7f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:57, skipping insertion in model container [2021-10-28 23:47:57,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:57" (1/1) ... [2021-10-28 23:47:57,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:47:57,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:47:58,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:58,085 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:47:58,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:47:58,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:58,136 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:47:58,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:58,235 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:47:58,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58 WrapperNode [2021-10-28 23:47:58,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:58,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:47:58,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:47:58,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:47:58,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:47:58,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:47:58,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:47:58,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:47:58,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (1/1) ... [2021-10-28 23:47:58,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:47:58,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:47:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:47:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:47:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:47:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:47:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:47:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:47:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:47:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:47:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:47:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-10-28 23:47:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-28 23:47:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-28 23:47:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-28 23:47:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-10-28 23:47:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-28 23:47:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-28 23:47:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-28 23:47:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-28 23:47:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-28 23:47:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2021-10-28 23:47:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-28 23:47:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:47:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:47:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:47:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:47:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:47:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:47:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:47:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:47:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:47:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:47:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:47:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:47:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:47:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:47:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:47:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:47:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:47:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:47:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:47:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:47:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:47:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:47:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:47:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:47:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:47:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:47:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:47:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:47:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:47:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:47:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:47:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:47:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:47:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:47:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:47:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:47:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:47:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:47:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:47:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:47:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:47:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:47:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:47:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:47:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:47:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:47:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:47:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:47:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:47:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:47:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:47:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:47:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:47:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:47:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:47:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:47:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:47:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:47:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:47:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:47:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:47:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:47:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:47:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:47:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:47:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:47:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:47:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:47:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:47:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:47:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:47:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:47:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:47:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:47:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-10-28 23:47:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:47:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-28 23:47:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:47:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-28 23:47:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-28 23:47:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-10-28 23:47:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-28 23:47:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-28 23:47:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:47:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:47:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-28 23:47:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-28 23:47:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:47:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-28 23:47:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:47:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure gl_seek_max [2021-10-28 23:47:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-28 23:47:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:47:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:47:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:47:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:47:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:47:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:47:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:47:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:47:59,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:47:59,567 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:47:59,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:59 BoogieIcfgContainer [2021-10-28 23:47:59,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:47:59,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:47:59,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:47:59,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:47:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:47:57" (1/3) ... [2021-10-28 23:47:59,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61380af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:47:59, skipping insertion in model container [2021-10-28 23:47:59,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:58" (2/3) ... [2021-10-28 23:47:59,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61380af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:47:59, skipping insertion in model container [2021-10-28 23:47:59,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:59" (3/3) ... [2021-10-28 23:47:59,579 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0137.i [2021-10-28 23:47:59,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:47:59,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-10-28 23:47:59,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:47:59,632 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 [2021-10-28 23:47:59,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-10-28 23:47:59,649 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) [2021-10-28 23:47:59,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:47:59,657 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:47:59,658 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:47:59,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:47:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 584488031, now seen corresponding path program 1 times [2021-10-28 23:47:59,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:47:59,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641798166] [2021-10-28 23:47:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:59,681 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:47:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:47:59,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:47:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:59,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:47:59,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:47:59,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:00,036 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:00,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641798166] [2021-10-28 23:48:00,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641798166] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:00,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:00,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:48:00,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872709859] [2021-10-28 23:48:00,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:48:00,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:00,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:48:00,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:48:00,070 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) [2021-10-28 23:48:00,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:00,111 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2021-10-28 23:48:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:48:00,113 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 [2021-10-28 23:48:00,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:00,127 INFO L225 Difference]: With dead ends: 165 [2021-10-28 23:48:00,127 INFO L226 Difference]: Without dead ends: 162 [2021-10-28 23:48:00,129 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:48:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-28 23:48:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-10-28 23:48:00,198 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) [2021-10-28 23:48:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2021-10-28 23:48:00,215 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 10 [2021-10-28 23:48:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:00,215 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2021-10-28 23:48:00,216 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) [2021-10-28 23:48:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2021-10-28 23:48:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:48:00,216 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:00,217 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:00,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:00,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:00,430 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:00,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash 584488093, now seen corresponding path program 1 times [2021-10-28 23:48:00,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:00,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111169591] [2021-10-28 23:48:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:00,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:00,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:00,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:00,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:48:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:00,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:00,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:00,641 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 [2021-10-28 23:48:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:00,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:00,712 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:00,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111169591] [2021-10-28 23:48:00,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111169591] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:00,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:00,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:48:00,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604503854] [2021-10-28 23:48:00,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:48:00,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:48:00,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:48:00,725 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) [2021-10-28 23:48:01,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:01,043 INFO L93 Difference]: Finished difference Result 161 states and 170 transitions. [2021-10-28 23:48:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:48:01,049 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 [2021-10-28 23:48:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:01,051 INFO L225 Difference]: With dead ends: 161 [2021-10-28 23:48:01,051 INFO L226 Difference]: Without dead ends: 161 [2021-10-28 23:48:01,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:48:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-28 23:48:01,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-10-28 23:48:01,065 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) [2021-10-28 23:48:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2021-10-28 23:48:01,067 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 10 [2021-10-28 23:48:01,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:01,067 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2021-10-28 23:48:01,068 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) [2021-10-28 23:48:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2021-10-28 23:48:01,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:48:01,068 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:01,068 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:01,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:01,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash 584488094, now seen corresponding path program 1 times [2021-10-28 23:48:01,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:01,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856091077] [2021-10-28 23:48:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:01,291 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:01,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:48:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,555 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 [2021-10-28 23:48:01,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:01,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:01,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:01,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856091077] [2021-10-28 23:48:01,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856091077] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:01,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:01,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 23:48:01,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736314830] [2021-10-28 23:48:01,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:48:01,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:48:01,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:01,671 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) [2021-10-28 23:48:02,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:02,277 INFO L93 Difference]: Finished difference Result 160 states and 169 transitions. [2021-10-28 23:48:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:48:02,278 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 [2021-10-28 23:48:02,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:02,280 INFO L225 Difference]: With dead ends: 160 [2021-10-28 23:48:02,280 INFO L226 Difference]: Without dead ends: 160 [2021-10-28 23:48:02,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-28 23:48:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-28 23:48:02,290 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) [2021-10-28 23:48:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 169 transitions. [2021-10-28 23:48:02,291 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 169 transitions. Word has length 10 [2021-10-28 23:48:02,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:02,292 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 169 transitions. [2021-10-28 23:48:02,292 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) [2021-10-28 23:48:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 169 transitions. [2021-10-28 23:48:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:48:02,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:02,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:02,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:02,505 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:02,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 687588142, now seen corresponding path program 1 times [2021-10-28 23:48:02,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:02,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901351989] [2021-10-28 23:48:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:02,507 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:02,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:02,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:48:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:02,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:48:02,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:02,817 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:48:02,819 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 [2021-10-28 23:48:03,131 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-28 23:48:03,131 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 [2021-10-28 23:48:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:03,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:18,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:18,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901351989] [2021-10-28 23:48:18,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901351989] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:18,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:18,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:48:18,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666880127] [2021-10-28 23:48:18,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:48:18,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:18,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:48:18,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-28 23:48:18,307 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) [2021-10-28 23:48:19,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:19,513 INFO L93 Difference]: Finished difference Result 188 states and 198 transitions. [2021-10-28 23:48:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:48:19,514 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 [2021-10-28 23:48:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:19,517 INFO L225 Difference]: With dead ends: 188 [2021-10-28 23:48:19,518 INFO L226 Difference]: Without dead ends: 188 [2021-10-28 23:48:19,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=45, Invalid=85, Unknown=2, NotChecked=0, Total=132 [2021-10-28 23:48:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-28 23:48:19,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2021-10-28 23:48:19,531 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) [2021-10-28 23:48:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 184 transitions. [2021-10-28 23:48:19,533 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 184 transitions. Word has length 13 [2021-10-28 23:48:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:19,533 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 184 transitions. [2021-10-28 23:48:19,533 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) [2021-10-28 23:48:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 184 transitions. [2021-10-28 23:48:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:48:19,534 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:19,534 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:19,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:19,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:19,746 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:19,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:19,747 INFO L85 PathProgramCache]: Analyzing trace with hash 687588143, now seen corresponding path program 1 times [2021-10-28 23:48:19,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:19,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056788125] [2021-10-28 23:48:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:19,753 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:19,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:19,754 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:19,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:48:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:19,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:48:19,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:20,040 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 23:48:20,041 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 [2021-10-28 23:48:20,128 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:48:20,129 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 [2021-10-28 23:48:20,655 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-28 23:48:20,655 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 [2021-10-28 23:48:20,715 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 23:48:20,715 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 [2021-10-28 23:48:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:21,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:29,598 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:29,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056788125] [2021-10-28 23:48:29,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056788125] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:29,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:29,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 23:48:29,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372157413] [2021-10-28 23:48:29,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:29,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:29,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:29,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-28 23:48:29,601 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) [2021-10-28 23:48:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:37,922 INFO L93 Difference]: Finished difference Result 224 states and 231 transitions. [2021-10-28 23:48:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:48:37,923 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 [2021-10-28 23:48:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:37,925 INFO L225 Difference]: With dead ends: 224 [2021-10-28 23:48:37,925 INFO L226 Difference]: Without dead ends: 224 [2021-10-28 23:48:37,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=67, Invalid=141, Unknown=2, NotChecked=0, Total=210 [2021-10-28 23:48:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-28 23:48:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 185. [2021-10-28 23:48:37,944 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) [2021-10-28 23:48:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 209 transitions. [2021-10-28 23:48:37,946 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 209 transitions. Word has length 13 [2021-10-28 23:48:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:37,946 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 209 transitions. [2021-10-28 23:48:37,946 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) [2021-10-28 23:48:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 209 transitions. [2021-10-28 23:48:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:48:37,947 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:37,947 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:37,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:38,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:38,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1239538309, now seen corresponding path program 1 times [2021-10-28 23:48:38,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:38,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784698709] [2021-10-28 23:48:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:38,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:38,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:38,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:48:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:38,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:48:38,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:38,692 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:48:38,693 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 [2021-10-28 23:48:39,208 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:48:39,209 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 [2021-10-28 23:48:39,422 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:48:39,423 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 [2021-10-28 23:48:39,510 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 [2021-10-28 23:48:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:39,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:39,674 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 23:48:39,675 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 [2021-10-28 23:48:47,607 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 [2021-10-28 23:48:49,671 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 [2021-10-28 23:48:51,735 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 [2021-10-28 23:48:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:51,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:51,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784698709] [2021-10-28 23:48:51,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784698709] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:51,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:51,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-28 23:48:51,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479576537] [2021-10-28 23:48:51,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:48:51,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:51,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:48:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=88, Unknown=5, NotChecked=60, Total=182 [2021-10-28 23:48:51,974 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) [2021-10-28 23:48:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:53,796 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2021-10-28 23:48:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:48:53,797 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 [2021-10-28 23:48:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:53,799 INFO L225 Difference]: With dead ends: 208 [2021-10-28 23:48:53,800 INFO L226 Difference]: Without dead ends: 208 [2021-10-28 23:48:53,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=73, Invalid=240, Unknown=5, NotChecked=102, Total=420 [2021-10-28 23:48:53,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-28 23:48:53,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2021-10-28 23:48:53,813 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) [2021-10-28 23:48:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 233 transitions. [2021-10-28 23:48:53,816 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 233 transitions. Word has length 16 [2021-10-28 23:48:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:53,816 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 233 transitions. [2021-10-28 23:48:53,816 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) [2021-10-28 23:48:53,817 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 233 transitions. [2021-10-28 23:48:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:48:53,817 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:53,818 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:53,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:54,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:54,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:48:54,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1239538310, now seen corresponding path program 1 times [2021-10-28 23:48:54,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:54,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23424703] [2021-10-28 23:48:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:54,029 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:54,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:54,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:54,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:48:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:54,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 23:48:54,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:54,547 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:48:54,547 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 [2021-10-28 23:48:54,641 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 23:48:54,641 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 [2021-10-28 23:48:55,698 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 23:48:55,699 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 [2021-10-28 23:48:55,759 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-28 23:48:55,760 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 [2021-10-28 23:48:56,563 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:48:56,563 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 [2021-10-28 23:48:56,709 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:48:56,710 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 [2021-10-28 23:48:57,066 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 [2021-10-28 23:48:57,076 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 [2021-10-28 23:48:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:57,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:01,117 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~0.base) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~0.base) 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))))) is different from false [2021-10-28 23:49:16,428 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 [2021-10-28 23:49:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:38,027 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:38,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23424703] [2021-10-28 23:49:38,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23424703] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:38,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:38,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 19 [2021-10-28 23:49:38,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624887046] [2021-10-28 23:49:38,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:49:38,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:49:38,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=251, Unknown=15, NotChecked=66, Total=380 [2021-10-28 23:49:38,030 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) [2021-10-28 23:50:07,090 WARN L207 SmtUtils]: Spent 8.26 s on a formula simplification. DAG size of input: 91 DAG size of output: 37 [2021-10-28 23:50:10,733 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse5 (bvadd .cse4 (_ bv8 32)))) (and (exists ((gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| gl_insert_~node~0.base) (_ bv12 32))) (= (_ bv8 32) (select |c_#length| |c___list_add_#in~next.base|)) (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$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$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))))))))))))) (= (_ bv0 32) |c___list_add_#in~next.offset|) (= c___list_add_~next.offset (_ bv0 32)) (= (_ bv8 32) (select |c_#length| c___list_add_~next.base)) (bvule (bvadd (_ bv4 32) .cse4) .cse5) (bvule .cse5 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse6 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse7 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse8 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse6 v_DerPreprocessor_10) .cse7 v_DerPreprocessor_11) .cse8 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse6 v_DerPreprocessor_6) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$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) .cse9) (bvadd (_ bv8 32) .cse9)))))))))) is different from false [2021-10-28 23:50:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:26,076 INFO L93 Difference]: Finished difference Result 207 states and 233 transitions. [2021-10-28 23:50:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:50:26,078 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 [2021-10-28 23:50:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:26,079 INFO L225 Difference]: With dead ends: 207 [2021-10-28 23:50:26,080 INFO L226 Difference]: Without dead ends: 207 [2021-10-28 23:50:26,080 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 70.9s TimeCoverageRelationStatistics Valid=143, Invalid=493, Unknown=26, NotChecked=150, Total=812 [2021-10-28 23:50:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-28 23:50:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 200. [2021-10-28 23:50:26,089 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) [2021-10-28 23:50:26,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 232 transitions. [2021-10-28 23:50:26,091 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 232 transitions. Word has length 16 [2021-10-28 23:50:26,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:26,092 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 232 transitions. [2021-10-28 23:50:26,092 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) [2021-10-28 23:50:26,092 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 232 transitions. [2021-10-28 23:50:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:50:26,093 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:26,093 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:26,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:26,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:26,299 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash -229018017, now seen corresponding path program 1 times [2021-10-28 23:50:26,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:26,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464823081] [2021-10-28 23:50:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:26,301 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:26,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:26,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:26,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:50:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:26,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:50:26,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:26,587 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 [2021-10-28 23:50:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:26,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:26,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:26,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464823081] [2021-10-28 23:50:26,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464823081] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:26,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:26,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 23:50:26,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377015280] [2021-10-28 23:50:26,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:50:26,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:26,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:50:26,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:50:26,828 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) [2021-10-28 23:50:27,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:27,664 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2021-10-28 23:50:27,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:50:27,665 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 [2021-10-28 23:50:27,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:27,667 INFO L225 Difference]: With dead ends: 205 [2021-10-28 23:50:27,667 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 23:50:27,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:50:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 23:50:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 199. [2021-10-28 23:50:27,676 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) [2021-10-28 23:50:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2021-10-28 23:50:27,677 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 17 [2021-10-28 23:50:27,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:27,678 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2021-10-28 23:50:27,678 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) [2021-10-28 23:50:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2021-10-28 23:50:27,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:50:27,679 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:27,679 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:27,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:27,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:27,891 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash -229018016, now seen corresponding path program 1 times [2021-10-28 23:50:27,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:27,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544743208] [2021-10-28 23:50:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:27,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:27,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:27,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:50:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:28,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:50:28,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:28,182 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 [2021-10-28 23:50:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:28,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:28,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:28,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544743208] [2021-10-28 23:50:28,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544743208] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:28,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:28,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-28 23:50:28,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388243269] [2021-10-28 23:50:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:50:28,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:50:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:50:28,866 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) [2021-10-28 23:50:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:30,726 INFO L93 Difference]: Finished difference Result 203 states and 223 transitions. [2021-10-28 23:50:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:50:30,727 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 [2021-10-28 23:50:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:30,729 INFO L225 Difference]: With dead ends: 203 [2021-10-28 23:50:30,729 INFO L226 Difference]: Without dead ends: 203 [2021-10-28 23:50:30,729 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:50:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-28 23:50:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-10-28 23:50:30,735 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) [2021-10-28 23:50:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 223 transitions. [2021-10-28 23:50:30,737 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 223 transitions. Word has length 17 [2021-10-28 23:50:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:30,737 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 223 transitions. [2021-10-28 23:50:30,738 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) [2021-10-28 23:50:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 223 transitions. [2021-10-28 23:50:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:50:30,739 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:30,739 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:30,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:30,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:30,951 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:30,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1042979966, now seen corresponding path program 1 times [2021-10-28 23:50:30,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:30,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345401788] [2021-10-28 23:50:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:30,955 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:30,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:30,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:30,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:50:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:31,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:31,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:31,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:31,438 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:31,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345401788] [2021-10-28 23:50:31,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345401788] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:31,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:31,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:50:31,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020812707] [2021-10-28 23:50:31,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:50:31,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:50:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:50:31,441 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) [2021-10-28 23:50:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:31,862 INFO L93 Difference]: Finished difference Result 198 states and 220 transitions. [2021-10-28 23:50:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:50:31,863 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 [2021-10-28 23:50:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:31,865 INFO L225 Difference]: With dead ends: 198 [2021-10-28 23:50:31,865 INFO L226 Difference]: Without dead ends: 198 [2021-10-28 23:50:31,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:50:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-28 23:50:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-10-28 23:50:31,872 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) [2021-10-28 23:50:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2021-10-28 23:50:31,874 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 19 [2021-10-28 23:50:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:31,874 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2021-10-28 23:50:31,874 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) [2021-10-28 23:50:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2021-10-28 23:50:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:50:31,875 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:31,875 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:31,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:32,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:32,076 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1042979965, now seen corresponding path program 1 times [2021-10-28 23:50:32,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:32,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303588367] [2021-10-28 23:50:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:32,077 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:32,077 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:32,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:50:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:32,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:50:32,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:32,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:32,884 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 [2021-10-28 23:50:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:33,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:33,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303588367] [2021-10-28 23:50:33,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303588367] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:33,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:33,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 23:50:33,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650773375] [2021-10-28 23:50:33,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:50:33,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:50:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:50:33,135 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) [2021-10-28 23:50:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:35,114 INFO L93 Difference]: Finished difference Result 199 states and 217 transitions. [2021-10-28 23:50:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:50:35,115 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 [2021-10-28 23:50:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:35,116 INFO L225 Difference]: With dead ends: 199 [2021-10-28 23:50:35,116 INFO L226 Difference]: Without dead ends: 199 [2021-10-28 23:50:35,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:50:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-28 23:50:35,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2021-10-28 23:50:35,123 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) [2021-10-28 23:50:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2021-10-28 23:50:35,124 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 19 [2021-10-28 23:50:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:35,125 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2021-10-28 23:50:35,125 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) [2021-10-28 23:50:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2021-10-28 23:50:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:50:35,126 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:35,127 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:35,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-28 23:50:35,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:35,335 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting list_emptyErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:35,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1130114392, now seen corresponding path program 1 times [2021-10-28 23:50:35,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:35,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116289252] [2021-10-28 23:50:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:35,348 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:35,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:35,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:35,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 23:50:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:35,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:50:35,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:35,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:36,198 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 23:50:36,198 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 [2021-10-28 23:50:36,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:36,227 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:36,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116289252] [2021-10-28 23:50:36,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116289252] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:36,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:36,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-28 23:50:36,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826352881] [2021-10-28 23:50:36,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:50:36,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:36,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:50:36,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:50:36,229 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) [2021-10-28 23:50:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:37,069 INFO L93 Difference]: Finished difference Result 196 states and 215 transitions. [2021-10-28 23:50:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:50:37,070 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 [2021-10-28 23:50:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:37,071 INFO L225 Difference]: With dead ends: 196 [2021-10-28 23:50:37,072 INFO L226 Difference]: Without dead ends: 196 [2021-10-28 23:50:37,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:50:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-28 23:50:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-10-28 23:50:37,077 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) [2021-10-28 23:50:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 215 transitions. [2021-10-28 23:50:37,079 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 215 transitions. Word has length 34 [2021-10-28 23:50:37,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:37,080 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 215 transitions. [2021-10-28 23:50:37,080 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) [2021-10-28 23:50:37,080 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 215 transitions. [2021-10-28 23:50:37,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:50:37,081 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:37,081 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:37,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:37,282 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting list_emptyErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:37,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1130114391, now seen corresponding path program 1 times [2021-10-28 23:50:37,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:37,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531569837] [2021-10-28 23:50:37,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,283 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:37,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:37,284 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:37,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 23:50:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:37,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:50:37,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:37,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:38,283 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 [2021-10-28 23:50:38,848 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:50:38,849 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 [2021-10-28 23:50:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:39,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:39,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531569837] [2021-10-28 23:50:39,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531569837] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:39,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:39,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-28 23:50:39,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347421359] [2021-10-28 23:50:39,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:50:39,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:50:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:50:39,055 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) [2021-10-28 23:50:41,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:41,157 INFO L93 Difference]: Finished difference Result 195 states and 213 transitions. [2021-10-28 23:50:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:50:41,158 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 [2021-10-28 23:50:41,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:41,160 INFO L225 Difference]: With dead ends: 195 [2021-10-28 23:50:41,160 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 23:50:41,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:50:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 23:50:41,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-10-28 23:50:41,166 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) [2021-10-28 23:50:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2021-10-28 23:50:41,168 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 34 [2021-10-28 23:50:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:41,168 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2021-10-28 23:50:41,169 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) [2021-10-28 23:50:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2021-10-28 23:50:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:50:41,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:41,170 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:41,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:41,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:41,383 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 60 more)] === [2021-10-28 23:50:41,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash 853907176, now seen corresponding path program 1 times [2021-10-28 23:50:41,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:41,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374189515] [2021-10-28 23:50:41,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:41,384 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:41,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:41,385 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:41,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 23:50:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:41,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 23:50:41,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:41,858 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 [2021-10-28 23:50:42,152 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 [2021-10-28 23:50:42,472 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-28 23:50:42,472 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 [2021-10-28 23:50:42,695 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:50:42,695 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 [2021-10-28 23:50:43,013 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 [2021-10-28 23:50:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:43,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:45,855 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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_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 [2021-10-28 23:50:47,924 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 [2021-10-28 23:50:48,712 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:48,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374189515] [2021-10-28 23:50:48,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:50:48,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [556937830] [2021-10-28 23:50:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:48,713 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:50:48,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:50:48,715 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:50:48,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-28 23:50:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:49,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:50:49,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:49,489 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 [2021-10-28 23:50:49,585 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 [2021-10-28 23:50:50,310 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 [2021-10-28 23:50:51,043 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-28 23:50:51,044 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 [2021-10-28 23:50:51,417 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:50:51,417 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 [2021-10-28 23:50:52,107 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 [2021-10-28 23:50:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:53,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:51:07,213 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:51:07,213 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 3478 treesize of output 3436 [2021-10-28 23:51:10,858 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 352726 treesize of output 351702 [2021-10-28 23:51:11,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:51:11,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580303227] [2021-10-28 23:51:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:11,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:51:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:11,796 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:51:11,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:51:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:12,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:51:12,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:12,362 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:51:12,363 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 [2021-10-28 23:51:12,716 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 [2021-10-28 23:51:12,932 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 [2021-10-28 23:51:13,114 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 [2021-10-28 23:51:13,563 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-28 23:51:13,563 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 [2021-10-28 23:51:13,736 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-28 23:51:13,736 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 [2021-10-28 23:51:13,942 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:51:13,942 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 [2021-10-28 23:51:14,121 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 [2021-10-28 23:51:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:51:14,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:51:24,671 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_gl_insert_~node~0.base_42 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_42)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_42) gl_insert_~node~0.offset v_DerPreprocessor_17) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_18) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_19) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_20)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))) (_ bv1 1))))) is different from false [2021-10-28 23:51:26,747 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_gl_insert_~node~0.base_42 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_42)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_42) gl_insert_~node~0.offset v_DerPreprocessor_17) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_18) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_19) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_20)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))))) is different from false [2021-10-28 23:51:49,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:51:49,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:49,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:51:49,551 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:51:49,552 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:51:49,558 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,560 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-28 23:51:49,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-28 23:51:49,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-28 23:51:49,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-28 23:51:49,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-28 23:51:49,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-28 23:51:49,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:51:49,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr4REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr5REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr6REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr7REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr4REQUIRES_VIOLATION [2021-10-28 23:51:49,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr5REQUIRES_VIOLATION [2021-10-28 23:51:49,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr6REQUIRES_VIOLATION [2021-10-28 23:51:49,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr7REQUIRES_VIOLATION [2021-10-28 23:51:49,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr8REQUIRES_VIOLATION [2021-10-28 23:51:49,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr9REQUIRES_VIOLATION [2021-10-28 23:51:49,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr10REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr11REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr12REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr13REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr14REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sortErr15REQUIRES_VIOLATION [2021-10-28 23:51:49,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr0REQUIRES_VIOLATION [2021-10-28 23:51:49,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr1REQUIRES_VIOLATION [2021-10-28 23:51:49,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr2REQUIRES_VIOLATION [2021-10-28 23:51:49,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr3REQUIRES_VIOLATION [2021-10-28 23:51:49,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr4REQUIRES_VIOLATION [2021-10-28 23:51:49,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr5REQUIRES_VIOLATION [2021-10-28 23:51:49,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:49,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:49,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2021-10-28 23:51:50,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:51:50,190 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:50,194 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:51:50,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:51:50 BoogieIcfgContainer [2021-10-28 23:51:50,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:51:50,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:51:50,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:51:50,237 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:51:50,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:59" (3/4) ... [2021-10-28 23:51:50,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:51:50,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:51:50,243 INFO L168 Benchmark]: Toolchain (without parser) took 232642.04 ms. Allocated memory was 73.4 MB in the beginning and 253.8 MB in the end (delta: 180.4 MB). Free memory was 56.4 MB in the beginning and 142.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:50,243 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 54.3 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:51:50,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.58 ms. Allocated memory is still 73.4 MB. Free memory was 56.3 MB in the beginning and 55.6 MB in the end (delta: 606.8 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:50,244 INFO L168 Benchmark]: Boogie Preprocessor took 73.88 ms. Allocated memory is still 73.4 MB. Free memory was 55.6 MB in the beginning and 52.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:50,245 INFO L168 Benchmark]: RCFGBuilder took 1258.81 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 40.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:50,245 INFO L168 Benchmark]: TraceAbstraction took 230664.73 ms. Allocated memory was 73.4 MB in the beginning and 253.8 MB in the end (delta: 180.4 MB). Free memory was 40.6 MB in the beginning and 142.1 MB in the end (delta: -101.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:50,246 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 253.8 MB. Free memory is still 142.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:51:50,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 54.3 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 632.58 ms. Allocated memory is still 73.4 MB. Free memory was 56.3 MB in the beginning and 55.6 MB in the end (delta: 606.8 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.88 ms. Allocated memory is still 73.4 MB. Free memory was 55.6 MB in the beginning and 52.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1258.81 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 40.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 230664.73 ms. Allocated memory was 73.4 MB in the beginning and 253.8 MB in the end (delta: 180.4 MB). Free memory was 40.6 MB in the beginning and 142.1 MB in the end (delta: -101.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.14 ms. Allocated memory is still 253.8 MB. Free memory is still 142.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 230.5s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 68.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1764 SDtfs, 1605 SDslu, 6461 SDs, 0 SdLazy, 4526 SolverSat, 265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 320 SyntacticMatches, 30 SemanticMatches, 144 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 114.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=6, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 83 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 93.7s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 467 ConstructedInterpolants, 68 QuantifiedInterpolants, 5807 SizeOfPredicates, 137 NumberOfNonLiveVariables, 2018 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 27 InterpolantComputations, 26 PerfectInterpolantSequences, 6/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:51:50,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939e6f8-7c82-4da3-a76d-ec9884234da4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...