./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.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_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg --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 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c ................................................................................................................................... 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_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg --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 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:01:11,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:01:11,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:01:11,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:01:11,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:01:11,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:01:11,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:01:11,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:01:11,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:01:11,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:01:11,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:01:11,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:01:11,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:01:11,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:01:11,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:01:11,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:01:11,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:01:11,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:01:11,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:01:11,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:01:11,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:01:11,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:01:11,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:01:11,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:01:11,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:01:11,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:01:11,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:01:11,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:01:11,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:01:11,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:01:11,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:01:11,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:01:11,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:01:11,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:01:11,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:01:11,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:01:11,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:01:11,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:01:11,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:01:11,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:01:11,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:01:11,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:01:11,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:01:11,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:01:11,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:01:11,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:01:11,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:01:11,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:01:11,929 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:01:11,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:01:11,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:01:11,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:01:11,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:01:11,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:01:11,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:01:11,931 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:01:11,932 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:01:11,932 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:01:11,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:01:11,932 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:01:11,933 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:01:11,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:01:11,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:01:11,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:01:11,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:01:11,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:11,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:01:11,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:01:11,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:01:11,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:01:11,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:01:11,937 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_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c [2021-10-28 09:01:12,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:01:12,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:01:12,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:01:12,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:01:12,291 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:01:12,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 09:01:12,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/7ff2484fa/20d7f8a6f6ee436e95437ac3d94d8584/FLAG6fb12760d [2021-10-28 09:01:12,919 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:01:12,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 09:01:12,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/7ff2484fa/20d7f8a6f6ee436e95437ac3d94d8584/FLAG6fb12760d [2021-10-28 09:01:13,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/7ff2484fa/20d7f8a6f6ee436e95437ac3d94d8584 [2021-10-28 09:01:13,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:01:13,219 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:01:13,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:13,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:01:13,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:01:13,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:13" (1/1) ... [2021-10-28 09:01:13,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d05c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:13, skipping insertion in model container [2021-10-28 09:01:13,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:13" (1/1) ... [2021-10-28 09:01:13,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:01:13,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:13,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:13,738 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 09:01:13,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a5863ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:13, skipping insertion in model container [2021-10-28 09:01:13,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:13,740 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:01:13,742 INFO L168 Benchmark]: Toolchain (without parser) took 521.51 ms. Allocated memory is still 104.9 MB. Free memory was 69.4 MB in the beginning and 77.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:13,743 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:01:13,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.26 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 77.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:13,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.26 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 77.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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 09:01:15,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:01:15,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:01:15,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:01:15,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:01:15,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:01:15,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:01:15,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:01:15,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:01:15,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:01:15,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:01:15,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:01:15,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:01:15,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:01:15,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:01:15,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:01:15,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:01:15,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:01:15,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:01:15,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:01:15,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:01:15,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:01:15,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:01:15,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:01:15,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:01:15,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:01:15,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:01:15,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:01:15,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:01:15,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:01:15,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:01:15,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:01:15,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:01:15,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:01:15,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:01:15,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:01:15,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:01:15,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:01:15,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:01:15,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:01:15,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:01:15,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:01:15,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:01:15,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:01:15,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:01:15,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:01:15,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:01:15,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:01:15,962 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:01:15,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:01:15,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:01:15,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:01:15,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:01:15,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:01:15,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:01:15,965 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:01:15,965 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:01:15,966 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:01:15,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:01:15,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:01:15,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:01:15,966 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:01:15,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:01:15,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:01:15,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:01:15,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:01:15,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:01:15,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:15,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:01:15,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:01:15,969 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:01:15,969 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:01:15,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:01:15,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:01:15,970 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_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c [2021-10-28 09:01:16,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:01:16,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:01:16,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:01:16,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:01:16,395 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:01:16,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 09:01:16,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/09149009e/eb34d782b8964650a957d3ea5bfb89f2/FLAGd9a4f8c33 [2021-10-28 09:01:17,068 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:01:17,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 09:01:17,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/09149009e/eb34d782b8964650a957d3ea5bfb89f2/FLAGd9a4f8c33 [2021-10-28 09:01:17,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/data/09149009e/eb34d782b8964650a957d3ea5bfb89f2 [2021-10-28 09:01:17,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:01:17,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:01:17,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:17,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:01:17,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:01:17,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:17" (1/1) ... [2021-10-28 09:01:17,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7c08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:17, skipping insertion in model container [2021-10-28 09:01:17,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:17" (1/1) ... [2021-10-28 09:01:17,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:01:17,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:17,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:17,957 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:01:17,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:18,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:18,069 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:01:18,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:18,188 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:01:18,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18 WrapperNode [2021-10-28 09:01:18,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:18,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:01:18,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:01:18,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:01:18,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:01:18,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:01:18,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:01:18,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:01:18,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (1/1) ... [2021-10-28 09:01:18,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:18,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:18,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:01:18,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:01:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:01:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:01:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:01:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:01:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:01:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:01:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:01:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:01:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:01:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:01:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:01:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:01:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:01:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:01:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:01:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:01:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:01:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:01:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:01:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:01:18,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:01:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:01:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:01:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:01:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:01:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:01:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:01:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:01:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:01:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:01:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:01:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:01:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:01:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:01:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:01:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:01:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:01:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:01:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:01:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:01:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:01:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:01:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:01:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:01:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:01:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:01:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:01:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:01:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:01:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:01:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:01:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:01:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:01:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:01:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:01:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:01:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:01:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:01:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:01:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:01:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:01:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:01:19,066 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:01:19,496 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:01:19,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:01:19,742 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:01:19,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:19 BoogieIcfgContainer [2021-10-28 09:01:19,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:01:19,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:01:19,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:01:19,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:01:19,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:01:17" (1/3) ... [2021-10-28 09:01:19,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b6230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:19, skipping insertion in model container [2021-10-28 09:01:19,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:18" (2/3) ... [2021-10-28 09:01:19,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b6230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:19, skipping insertion in model container [2021-10-28 09:01:19,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:19" (3/3) ... [2021-10-28 09:01:19,753 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2021-10-28 09:01:19,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:01:19,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 09:01:19,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:01:19,818 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 09:01:19,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 09:01:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:01:19,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:01:19,861 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:19,861 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 09:01:19,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:19,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1853453812, now seen corresponding path program 1 times [2021-10-28 09:01:19,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:19,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8579125] [2021-10-28 09:01:19,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:19,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:19,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:19,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:19,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:01:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:01:20,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:20,213 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 09:01:20,279 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 09:01:20,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:20,399 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 09:01:20,399 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:20,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8579125] [2021-10-28 09:01:20,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8579125] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:20,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:20,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:01:20,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105027285] [2021-10-28 09:01:20,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:20,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:20,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:20,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:20,436 INFO L87 Difference]: Start difference. First operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:01:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:20,704 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2021-10-28 09:01:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:01:20,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 09:01:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:20,720 INFO L225 Difference]: With dead ends: 132 [2021-10-28 09:01:20,720 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 09:01:20,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 09:01:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2021-10-28 09:01:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 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 09:01:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-10-28 09:01:20,793 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2021-10-28 09:01:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:20,794 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-10-28 09:01:20,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:01:20,795 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-10-28 09:01:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:01:20,796 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:20,797 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 09:01:20,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:21,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:21,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:21,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:21,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1853453811, now seen corresponding path program 1 times [2021-10-28 09:01:21,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:21,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579050760] [2021-10-28 09:01:21,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:21,010 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:21,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:21,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:21,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:01:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:21,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:01:21,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:21,208 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 09:01:21,291 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 09:01:21,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:21,707 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 09:01:21,707 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:21,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579050760] [2021-10-28 09:01:21,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579050760] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:21,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:21,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 09:01:21,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193522118] [2021-10-28 09:01:21,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:01:21,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:01:21,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:01:21,711 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:22,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:22,239 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2021-10-28 09:01:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:01:22,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 09:01:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:22,242 INFO L225 Difference]: With dead ends: 128 [2021-10-28 09:01:22,242 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 09:01:22,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:01:22,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 09:01:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-10-28 09:01:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 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 09:01:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2021-10-28 09:01:22,253 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 17 [2021-10-28 09:01:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:22,254 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2021-10-28 09:01:22,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2021-10-28 09:01:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:01:22,255 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:22,255 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 09:01:22,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 09:01:22,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:22,467 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:22,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1824824661, now seen corresponding path program 1 times [2021-10-28 09:01:22,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:22,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292068241] [2021-10-28 09:01:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:22,471 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:22,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:22,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:22,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:01:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:22,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:01:22,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:22,716 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 09:01:22,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:22,814 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 09:01:22,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:22,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292068241] [2021-10-28 09:01:22,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292068241] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:22,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:22,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:01:22,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232238390] [2021-10-28 09:01:22,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:22,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:22,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:22,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:22,817 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:01:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:22,839 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-10-28 09:01:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:01:22,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 09:01:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:22,841 INFO L225 Difference]: With dead ends: 122 [2021-10-28 09:01:22,842 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:01:22,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:22,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:01:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-28 09:01:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 87 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-10-28 09:01:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2021-10-28 09:01:22,850 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 17 [2021-10-28 09:01:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:22,851 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2021-10-28 09:01:22,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:01:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-10-28 09:01:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:01:22,852 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:22,853 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] [2021-10-28 09:01:22,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 09:01:23,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:23,064 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:23,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:23,064 INFO L85 PathProgramCache]: Analyzing trace with hash -779180921, now seen corresponding path program 1 times [2021-10-28 09:01:23,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:23,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650306353] [2021-10-28 09:01:23,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:23,065 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:23,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:23,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:23,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:01:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:23,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:01:23,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:23,375 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 09:01:23,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:23,496 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 09:01:23,497 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:23,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650306353] [2021-10-28 09:01:23,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650306353] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:23,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:23,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:01:23,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289133002] [2021-10-28 09:01:23,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:23,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:23,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:23,503 INFO L87 Difference]: Start difference. First operand 120 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:23,531 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2021-10-28 09:01:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:01:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 09:01:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:23,533 INFO L225 Difference]: With dead ends: 122 [2021-10-28 09:01:23,533 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:01:23,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:01:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-28 09:01:23,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.373134328358209) internal successors, (92), 87 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-10-28 09:01:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2021-10-28 09:01:23,555 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 29 [2021-10-28 09:01:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:23,556 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2021-10-28 09:01:23,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2021-10-28 09:01:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:01:23,558 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:23,558 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] [2021-10-28 09:01:23,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:23,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:23,774 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:23,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:23,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1776253274, now seen corresponding path program 1 times [2021-10-28 09:01:23,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:23,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883000299] [2021-10-28 09:01:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:23,775 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:23,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:23,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:23,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:01:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:23,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:01:23,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:24,153 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 09:01:24,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:24,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:24,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883000299] [2021-10-28 09:01:24,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883000299] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:24,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:24,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 09:01:24,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757158794] [2021-10-28 09:01:24,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:01:24,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:24,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:01:24,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:01:24,292 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:24,338 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2021-10-28 09:01:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:01:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 09:01:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:24,341 INFO L225 Difference]: With dead ends: 132 [2021-10-28 09:01:24,341 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 09:01:24,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:01:24,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 09:01:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-10-28 09:01:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 93 states have internal predecessors, (97), 18 states have call successors, (18), 18 states have call predecessors, (18), 19 states have return successors, (19), 18 states have call predecessors, (19), 17 states have call successors, (19) [2021-10-28 09:01:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2021-10-28 09:01:24,348 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 29 [2021-10-28 09:01:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:24,349 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2021-10-28 09:01:24,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2021-10-28 09:01:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:01:24,350 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:24,350 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] [2021-10-28 09:01:24,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 09:01:24,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:24,565 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:24,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:24,565 INFO L85 PathProgramCache]: Analyzing trace with hash 438885256, now seen corresponding path program 1 times [2021-10-28 09:01:24,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:24,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820590755] [2021-10-28 09:01:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:24,566 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:24,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:24,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:24,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:01:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:24,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:01:24,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:24,865 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 09:01:24,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:25,046 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 09:01:25,047 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:25,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820590755] [2021-10-28 09:01:25,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820590755] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:25,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:25,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:01:25,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186334877] [2021-10-28 09:01:25,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:25,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:25,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:25,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:25,049 INFO L87 Difference]: Start difference. First operand 128 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:01:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:25,190 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2021-10-28 09:01:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:25,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2021-10-28 09:01:25,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:25,193 INFO L225 Difference]: With dead ends: 139 [2021-10-28 09:01:25,193 INFO L226 Difference]: Without dead ends: 124 [2021-10-28 09:01:25,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 09:01:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-28 09:01:25,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2021-10-28 09:01:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 64 states have (on average 1.375) internal successors, (88), 84 states have internal predecessors, (88), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-10-28 09:01:25,198 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 27 [2021-10-28 09:01:25,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:25,198 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-10-28 09:01:25,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:01:25,199 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-10-28 09:01:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 09:01:25,200 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:25,200 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] [2021-10-28 09:01:25,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:25,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:25,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:25,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:25,401 INFO L85 PathProgramCache]: Analyzing trace with hash -972322523, now seen corresponding path program 1 times [2021-10-28 09:01:25,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:25,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549631554] [2021-10-28 09:01:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:25,402 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:25,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:25,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:01:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:25,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:01:25,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:25,729 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 09:01:25,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:25,846 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 09:01:25,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:25,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549631554] [2021-10-28 09:01:25,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549631554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:25,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:25,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:01:25,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64468351] [2021-10-28 09:01:25,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:01:25,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:25,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:01:25,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:01:25,849 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:25,890 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2021-10-28 09:01:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:01:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-10-28 09:01:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:25,892 INFO L225 Difference]: With dead ends: 122 [2021-10-28 09:01:25,892 INFO L226 Difference]: Without dead ends: 118 [2021-10-28 09:01:25,892 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:01:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-28 09:01:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-28 09:01:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 86 states have internal predecessors, (90), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:25,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2021-10-28 09:01:25,897 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 32 [2021-10-28 09:01:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:25,897 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2021-10-28 09:01:25,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2021-10-28 09:01:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:01:25,899 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:25,899 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:25,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:26,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:26,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:26,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1413246651, now seen corresponding path program 1 times [2021-10-28 09:01:26,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:26,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747951869] [2021-10-28 09:01:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:26,100 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:26,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:26,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:26,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:01:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:26,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:01:26,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:26,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:26,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:26,674 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:26,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747951869] [2021-10-28 09:01:26,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747951869] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:01:26,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:01:26,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 09:01:26,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015496824] [2021-10-28 09:01:26,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:01:26,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:01:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:01:26,675 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:26,834 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2021-10-28 09:01:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:01:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-10-28 09:01:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:26,840 INFO L225 Difference]: With dead ends: 126 [2021-10-28 09:01:26,841 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:01:26,841 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:01:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:01:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 09:01:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2021-10-28 09:01:26,845 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 34 [2021-10-28 09:01:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:26,846 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2021-10-28 09:01:26,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2021-10-28 09:01:26,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:01:26,847 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:26,847 INFO L513 BasicCegarLoop]: trace histogram [6, 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 09:01:26,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:27,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:27,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1076819579, now seen corresponding path program 2 times [2021-10-28 09:01:27,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:27,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637528407] [2021-10-28 09:01:27,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:01:27,062 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:27,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:27,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:27,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:01:27,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:01:27,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:01:27,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:01:27,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:27,321 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 09:01:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:01:27,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:01:27,798 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:27,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637528407] [2021-10-28 09:01:27,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637528407] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:27,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:27,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 09:01:27,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702023512] [2021-10-28 09:01:27,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:01:27,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:27,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:01:27,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:01:27,800 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:01:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:28,624 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2021-10-28 09:01:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:01:28,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-10-28 09:01:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:28,626 INFO L225 Difference]: With dead ends: 133 [2021-10-28 09:01:28,626 INFO L226 Difference]: Without dead ends: 133 [2021-10-28 09:01:28,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:01:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-28 09:01:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2021-10-28 09:01:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 89 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2021-10-28 09:01:28,632 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 38 [2021-10-28 09:01:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:28,633 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2021-10-28 09:01:28,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:01:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2021-10-28 09:01:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:01:28,634 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:28,634 INFO L513 BasicCegarLoop]: trace histogram [6, 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 09:01:28,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:28,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:28,846 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:28,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1076819578, now seen corresponding path program 1 times [2021-10-28 09:01:28,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:28,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595907811] [2021-10-28 09:01:28,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:28,847 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:28,849 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:28,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:01:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:29,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:01:29,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:29,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:29,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:29,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595907811] [2021-10-28 09:01:29,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595907811] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:01:29,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:01:29,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-28 09:01:29,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422819898] [2021-10-28 09:01:29,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:01:29,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:01:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:01:29,729 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:30,417 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-10-28 09:01:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:01:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-10-28 09:01:30,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:30,419 INFO L225 Difference]: With dead ends: 133 [2021-10-28 09:01:30,419 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 09:01:30,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:01:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 09:01:30,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-10-28 09:01:30,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.294871794871795) internal successors, (101), 97 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2021-10-28 09:01:30,425 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 38 [2021-10-28 09:01:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:30,425 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2021-10-28 09:01:30,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 09:01:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2021-10-28 09:01:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 09:01:30,426 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:30,427 INFO L513 BasicCegarLoop]: trace histogram [14, 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 09:01:30,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:30,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:30,638 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2145805818, now seen corresponding path program 2 times [2021-10-28 09:01:30,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:30,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318178936] [2021-10-28 09:01:30,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:01:30,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:30,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:30,641 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:30,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:01:30,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:01:30,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:01:30,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:01:30,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:30,947 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 09:01:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 09:01:31,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 09:01:32,427 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:32,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318178936] [2021-10-28 09:01:32,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318178936] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:32,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:32,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 09:01:32,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218529672] [2021-10-28 09:01:32,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:01:32,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:01:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:01:32,429 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:01:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:34,302 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-10-28 09:01:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:01:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-10-28 09:01:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:34,304 INFO L225 Difference]: With dead ends: 128 [2021-10-28 09:01:34,304 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 09:01:34,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:01:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 09:01:34,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-28 09:01:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:34,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-28 09:01:34,310 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 46 [2021-10-28 09:01:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:34,310 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-28 09:01:34,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:01:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-28 09:01:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:01:34,311 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:34,311 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:34,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:34,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:34,523 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2091386010, now seen corresponding path program 1 times [2021-10-28 09:01:34,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:34,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475840896] [2021-10-28 09:01:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:34,525 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:34,526 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:34,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 09:01:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:34,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:01:34,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:35,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:36,098 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:01:36,098 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:36,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475840896] [2021-10-28 09:01:36,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475840896] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:01:36,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:01:36,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-28 09:01:36,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653155799] [2021-10-28 09:01:36,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 09:01:36,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:36,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 09:01:36,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 09:01:36,102 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:01:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:36,617 INFO L93 Difference]: Finished difference Result 134 states and 139 transitions. [2021-10-28 09:01:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:01:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-28 09:01:36,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:36,619 INFO L225 Difference]: With dead ends: 134 [2021-10-28 09:01:36,619 INFO L226 Difference]: Without dead ends: 130 [2021-10-28 09:01:36,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 09:01:36,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-28 09:01:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-28 09:01:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-10-28 09:01:36,624 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 51 [2021-10-28 09:01:36,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:36,625 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-10-28 09:01:36,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:01:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-10-28 09:01:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 09:01:36,626 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:36,626 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:36,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:36,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:36,839 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:36,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1898067846, now seen corresponding path program 2 times [2021-10-28 09:01:36,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:36,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477786910] [2021-10-28 09:01:36,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:01:36,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:36,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:36,841 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:36,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 09:01:37,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:01:37,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:01:37,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:01:37,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:37,222 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 09:01:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:37,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:37,746 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:37,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477786910] [2021-10-28 09:01:37,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477786910] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:37,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:37,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 09:01:37,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663172749] [2021-10-28 09:01:37,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:01:37,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:37,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:01:37,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:01:37,748 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 09:01:38,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:38,339 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2021-10-28 09:01:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:01:38,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-10-28 09:01:38,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:38,340 INFO L225 Difference]: With dead ends: 140 [2021-10-28 09:01:38,340 INFO L226 Difference]: Without dead ends: 140 [2021-10-28 09:01:38,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:01:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-28 09:01:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2021-10-28 09:01:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.25) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-28 09:01:38,345 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 53 [2021-10-28 09:01:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:38,346 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-28 09:01:38,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 09:01:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-28 09:01:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 09:01:38,347 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:38,347 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:38,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:38,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:38,556 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:38,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1898067845, now seen corresponding path program 1 times [2021-10-28 09:01:38,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:38,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818096746] [2021-10-28 09:01:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:38,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:38,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:38,558 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:38,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 09:01:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:38,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:01:38,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:38,997 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 09:01:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:39,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:40,552 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:40,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818096746] [2021-10-28 09:01:40,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818096746] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:40,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:40,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 09:01:40,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158127335] [2021-10-28 09:01:40,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:01:40,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:01:40,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:01:40,555 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 09:01:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:42,287 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-28 09:01:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:01:42,288 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-10-28 09:01:42,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:42,290 INFO L225 Difference]: With dead ends: 126 [2021-10-28 09:01:42,290 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 09:01:42,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:01:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 09:01:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 09:01:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.225) internal successors, (98), 94 states have internal predecessors, (98), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2021-10-28 09:01:42,295 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 53 [2021-10-28 09:01:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:42,295 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2021-10-28 09:01:42,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 09:01:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2021-10-28 09:01:42,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:01:42,296 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:42,297 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:42,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:42,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:42,510 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:42,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:42,510 INFO L85 PathProgramCache]: Analyzing trace with hash 240730744, now seen corresponding path program 1 times [2021-10-28 09:01:42,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:42,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316139010] [2021-10-28 09:01:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:42,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:42,511 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:42,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 09:01:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:42,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:01:42,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:43,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:43,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:43,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316139010] [2021-10-28 09:01:43,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316139010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:43,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:43,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 09:01:43,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253655564] [2021-10-28 09:01:43,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:01:43,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:43,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:01:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:01:43,302 INFO L87 Difference]: Start difference. First operand 126 states and 131 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:01:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:43,349 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2021-10-28 09:01:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:01:43,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-10-28 09:01:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:43,350 INFO L225 Difference]: With dead ends: 128 [2021-10-28 09:01:43,350 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 09:01:43,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:01:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 09:01:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 09:01:43,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2125) internal successors, (97), 93 states have internal predecessors, (97), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2021-10-28 09:01:43,355 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 58 [2021-10-28 09:01:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:43,355 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2021-10-28 09:01:43,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:01:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2021-10-28 09:01:43,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:01:43,357 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:43,357 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:43,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:43,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:43,557 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:43,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -905772081, now seen corresponding path program 1 times [2021-10-28 09:01:43,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:43,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145230675] [2021-10-28 09:01:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:43,558 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:43,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:43,559 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:43,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 09:01:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:43,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:01:43,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:44,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:44,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:44,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145230675] [2021-10-28 09:01:44,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145230675] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:44,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:44,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-28 09:01:44,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685244020] [2021-10-28 09:01:44,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:01:44,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:44,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:01:44,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:01:44,507 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 09:01:44,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:44,596 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2021-10-28 09:01:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:01:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-10-28 09:01:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:44,597 INFO L225 Difference]: With dead ends: 130 [2021-10-28 09:01:44,598 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 09:01:44,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:01:44,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 09:01:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 09:01:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2) internal successors, (96), 92 states have internal predecessors, (96), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2021-10-28 09:01:44,603 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 63 [2021-10-28 09:01:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:44,603 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2021-10-28 09:01:44,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 09:01:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2021-10-28 09:01:44,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:01:44,604 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:44,604 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:44,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:44,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:44,817 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1773831866, now seen corresponding path program 1 times [2021-10-28 09:01:44,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:44,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168591151] [2021-10-28 09:01:44,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:44,818 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:44,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:44,819 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:44,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-28 09:01:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:45,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:01:45,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:45,329 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 09:01:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:45,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:46,151 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:46,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168591151] [2021-10-28 09:01:46,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168591151] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:46,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:46,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-10-28 09:01:46,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359205110] [2021-10-28 09:01:46,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 09:01:46,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:01:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:01:46,153 INFO L87 Difference]: Start difference. First operand 126 states and 129 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:01:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:46,994 INFO L93 Difference]: Finished difference Result 140 states and 142 transitions. [2021-10-28 09:01:46,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:01:46,994 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-10-28 09:01:46,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:46,995 INFO L225 Difference]: With dead ends: 140 [2021-10-28 09:01:46,995 INFO L226 Difference]: Without dead ends: 140 [2021-10-28 09:01:46,995 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:01:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-28 09:01:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 124. [2021-10-28 09:01:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 127 transitions. [2021-10-28 09:01:47,002 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 127 transitions. Word has length 74 [2021-10-28 09:01:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:47,003 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 127 transitions. [2021-10-28 09:01:47,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 09:01:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 127 transitions. [2021-10-28 09:01:47,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 09:01:47,004 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:47,004 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:47,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-10-28 09:01:47,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:47,218 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:47,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1773831867, now seen corresponding path program 1 times [2021-10-28 09:01:47,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:47,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928691841] [2021-10-28 09:01:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:47,219 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:47,219 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:47,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-28 09:01:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:47,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 09:01:47,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:47,840 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 09:01:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:48,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:50,320 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:50,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928691841] [2021-10-28 09:01:50,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928691841] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:50,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:50,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-10-28 09:01:50,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129710507] [2021-10-28 09:01:50,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-28 09:01:50,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-28 09:01:50,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 09:01:50,324 INFO L87 Difference]: Start difference. First operand 124 states and 127 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 09:01:52,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:52,801 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2021-10-28 09:01:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:01:52,802 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-10-28 09:01:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:52,803 INFO L225 Difference]: With dead ends: 122 [2021-10-28 09:01:52,803 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:01:52,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 09:01:52,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:01:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 09:01:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.15) internal successors, (92), 88 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2021-10-28 09:01:52,808 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 74 [2021-10-28 09:01:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:52,809 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2021-10-28 09:01:52,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 09:01:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2021-10-28 09:01:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:01:52,810 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:52,810 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:52,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:53,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:53,029 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:53,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:53,030 INFO L85 PathProgramCache]: Analyzing trace with hash 44814492, now seen corresponding path program 1 times [2021-10-28 09:01:53,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:53,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925719803] [2021-10-28 09:01:53,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:53,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:53,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:53,031 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:53,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-28 09:01:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:53,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:01:53,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:53,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:54,244 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:54,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925719803] [2021-10-28 09:01:54,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925719803] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:54,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:54,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-10-28 09:01:54,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249778204] [2021-10-28 09:01:54,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:01:54,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:54,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:01:54,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:01:54,246 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-10-28 09:01:54,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:54,317 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2021-10-28 09:01:54,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:01:54,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 72 [2021-10-28 09:01:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:54,318 INFO L225 Difference]: With dead ends: 124 [2021-10-28 09:01:54,318 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:01:54,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:01:54,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:01:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 09:01:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.1375) internal successors, (91), 88 states have internal predecessors, (91), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2021-10-28 09:01:54,323 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 72 [2021-10-28 09:01:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:54,323 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2021-10-28 09:01:54,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-10-28 09:01:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2021-10-28 09:01:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 09:01:54,325 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:54,325 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:54,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:54,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:54,537 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1162576382, now seen corresponding path program 1 times [2021-10-28 09:01:54,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:54,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615274259] [2021-10-28 09:01:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:54,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:54,538 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:54,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-28 09:01:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:55,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 09:01:55,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:55,191 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 09:01:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:55,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:56,257 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:56,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615274259] [2021-10-28 09:01:56,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615274259] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:56,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:56,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-10-28 09:01:56,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548662614] [2021-10-28 09:01:56,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:01:56,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:56,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:01:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:01:56,259 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 09:01:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:57,276 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2021-10-28 09:01:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:01:57,277 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2021-10-28 09:01:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:57,278 INFO L225 Difference]: With dead ends: 132 [2021-10-28 09:01:57,278 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 09:01:57,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 135 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:01:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 09:01:57,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2021-10-28 09:01:57,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 80 states have (on average 1.1125) internal successors, (89), 86 states have internal predecessors, (89), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:01:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2021-10-28 09:01:57,283 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 87 [2021-10-28 09:01:57,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:57,284 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2021-10-28 09:01:57,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 09:01:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2021-10-28 09:01:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 09:01:57,285 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:57,285 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:57,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:57,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:57,496 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:01:57,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1162576381, now seen corresponding path program 1 times [2021-10-28 09:01:57,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:57,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680067843] [2021-10-28 09:01:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:57,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:57,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:57,498 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:57,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-28 09:01:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:58,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 09:01:58,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:58,188 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 09:01:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:01:59,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:02:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:02:01,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:02:01,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680067843] [2021-10-28 09:02:01,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680067843] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:01,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:01,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-10-28 09:02:01,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768446471] [2021-10-28 09:02:01,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-28 09:02:01,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:02:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-28 09:02:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 09:02:01,775 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 09:02:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:05,559 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2021-10-28 09:02:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:02:05,560 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 87 [2021-10-28 09:02:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:05,561 INFO L225 Difference]: With dead ends: 118 [2021-10-28 09:02:05,561 INFO L226 Difference]: Without dead ends: 118 [2021-10-28 09:02:05,562 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 09:02:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-28 09:02:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-28 09:02:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 80 states have (on average 1.0875) internal successors, (87), 84 states have internal predecessors, (87), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:02:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2021-10-28 09:02:05,565 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 87 [2021-10-28 09:02:05,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:05,566 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2021-10-28 09:02:05,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 09:02:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2021-10-28 09:02:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-28 09:02:05,567 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:05,567 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:05,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:05,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:02:05,783 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:02:05,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash 303545963, now seen corresponding path program 1 times [2021-10-28 09:02:05,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:02:05,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003696373] [2021-10-28 09:02:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:05,784 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:02:05,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:02:05,785 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:02:05,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-28 09:02:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:06,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:02:06,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:02:08,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:02:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 09:02:08,926 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:02:08,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003696373] [2021-10-28 09:02:08,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003696373] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:08,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:08,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-10-28 09:02:08,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741195447] [2021-10-28 09:02:08,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 09:02:08,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:02:08,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 09:02:08,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 09:02:08,929 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 09:02:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:10,658 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2021-10-28 09:02:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:02:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2021-10-28 09:02:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:10,660 INFO L225 Difference]: With dead ends: 117 [2021-10-28 09:02:10,660 INFO L226 Difference]: Without dead ends: 117 [2021-10-28 09:02:10,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 09:02:10,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-28 09:02:10,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-10-28 09:02:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 80 states have (on average 1.075) internal successors, (86), 83 states have internal predecessors, (86), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:02:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-10-28 09:02:10,665 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 90 [2021-10-28 09:02:10,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:10,666 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-10-28 09:02:10,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 09:02:10,666 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-10-28 09:02:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 09:02:10,667 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:10,667 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:10,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:10,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:02:10,880 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:02:10,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2031958406, now seen corresponding path program 1 times [2021-10-28 09:02:10,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:02:10,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123771720] [2021-10-28 09:02:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:10,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:02:10,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:02:10,882 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:02:10,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-28 09:02:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:11,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-10-28 09:02:11,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:11,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-28 09:02:11,897 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 09:02:11,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-28 09:02:11,962 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-10-28 09:02:11,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-10-28 09:02:12,052 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-10-28 09:02:12,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 48 treesize of output 53 [2021-10-28 09:02:12,222 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-10-28 09:02:12,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-10-28 09:02:12,410 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-10-28 09:02:12,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-10-28 09:02:12,673 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-10-28 09:02:12,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-10-28 09:02:13,012 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-10-28 09:02:13,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-10-28 09:02:13,412 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-10-28 09:02:13,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-10-28 09:02:13,882 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-10-28 09:02:13,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-10-28 09:02:14,409 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-10-28 09:02:14,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-10-28 09:02:15,026 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-10-28 09:02:15,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 136 treesize of output 165 [2021-10-28 09:02:15,869 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-10-28 09:02:15,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-10-28 09:02:16,837 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-10-28 09:02:16,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-10-28 09:02:17,919 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-10-28 09:02:17,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-10-28 09:02:19,224 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-10-28 09:02:19,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-10-28 09:02:24,368 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-10-28 09:02:26,421 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-10-28 09:02:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:26,635 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:02:26,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-10-28 09:02:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:02:31,143 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:02:31,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-10-28 09:02:33,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:02:33,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-10-28 09:02:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:34,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:04:49,849 WARN L207 SmtUtils]: Spent 2.18 m on a formula simplification that was a NOOP. DAG size: 152 [2021-10-28 09:05:03,102 WARN L207 SmtUtils]: Spent 11.58 s on a formula simplification that was a NOOP. DAG size: 106 [2021-10-28 09:05:10,677 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 63 treesize of output 59 [2021-10-28 09:05:12,799 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (select (select |c_#memory_$Pointer$.offset| |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) is different from false [2021-10-28 09:05:15,053 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base (let ((.cse1 (bvadd (_ bv4 32) c_ldv_kobject_init_internal_~kobj.offset))) (store (store (select |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base) .cse1 .cse1) (bvadd (_ bv8 32) c_ldv_kobject_init_internal_~kobj.offset) .cse1))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|)))) is different from false [2021-10-28 09:05:15,323 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:05:15,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3830258 treesize of output 3821565 [2021-10-28 09:05:30,316 WARN L207 SmtUtils]: Spent 14.99 s on a formula simplification that was a NOOP. DAG size: 2072 [2021-10-28 09:11:20,054 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 09:11:20,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-10-28 09:11:20,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:11:20,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123771720] [2021-10-28 09:11:20,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-28 09:11:20,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1684065817] [2021-10-28 09:11:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:11:20,056 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:11:20,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:11:20,057 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:11:20,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-28 09:11:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:11:21,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-10-28 09:11:21,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:11:21,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-28 09:11:21,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301917628] [2021-10-28 09:11:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:11:21,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:11:21,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:11:21,924 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:11:21,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 09:11:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:11:23,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-28 09:11:23,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:11:23,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-28 09:11:23,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:11:23,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:11:23,071 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:11:23,071 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:11:23,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:11:23,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:11:23,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:11:23,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:11:23,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:11:23,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:11:23,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:11:23,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:11:23,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:11:23,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:11:23,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-10-28 09:11:23,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_503f3b16-7fdf-420c-b9ca-1c9eb3a8c67b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:11:23,703 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:11:23,705 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:11:23,709 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-28 09:11:23,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:11:23 BoogieIcfgContainer [2021-10-28 09:11:23,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:11:23,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:11:23,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:11:23,720 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:11:23,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:19" (3/4) ... [2021-10-28 09:11:23,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:11:23,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:11:23,724 INFO L168 Benchmark]: Toolchain (without parser) took 606355.64 ms. Allocated memory was 75.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 52.5 MB in the beginning and 580.1 MB in the end (delta: -527.6 MB). Peak memory consumption was 714.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:11:23,725 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 40.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:11:23,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.66 ms. Allocated memory is still 75.5 MB. Free memory was 52.4 MB in the beginning and 41.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:11:23,725 INFO L168 Benchmark]: Boogie Preprocessor took 96.77 ms. Allocated memory is still 75.5 MB. Free memory was 41.7 MB in the beginning and 37.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:11:23,726 INFO L168 Benchmark]: RCFGBuilder took 1457.08 ms. Allocated memory is still 75.5 MB. Free memory was 37.1 MB in the beginning and 35.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:11:23,726 INFO L168 Benchmark]: TraceAbstraction took 603972.37 ms. Allocated memory was 75.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 35.0 MB in the beginning and 581.1 MB in the end (delta: -546.1 MB). Peak memory consumption was 697.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:11:23,726 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 1.3 GB. Free memory is still 580.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:11:23,728 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 50.3 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 40.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 819.66 ms. Allocated memory is still 75.5 MB. Free memory was 52.4 MB in the beginning and 41.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.77 ms. Allocated memory is still 75.5 MB. Free memory was 41.7 MB in the beginning and 37.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1457.08 ms. Allocated memory is still 75.5 MB. Free memory was 37.1 MB in the beginning and 35.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 603972.37 ms. Allocated memory was 75.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 35.0 MB in the beginning and 581.1 MB in the end (delta: -546.1 MB). Peak memory consumption was 697.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.07 ms. Allocated memory is still 1.3 GB. Free memory is still 580.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * 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: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L763] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: 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: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: 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: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: 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 47 procedures, 331 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 603.9s, OverallIterations: 23, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2248 SDtfs, 1152 SDslu, 16433 SDs, 0 SdLazy, 8636 SolverSat, 313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2216 GetRequests, 1768 SyntacticMatches, 71 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 79 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 568.8s InterpolantComputationTime, 1179 NumberOfCodeBlocks, 1143 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2220 ConstructedInterpolants, 310 QuantifiedInterpolants, 13820 SizeOfPredicates, 128 NumberOfNonLiveVariables, 5029 ConjunctsInSsa, 438 ConjunctsInUnsatCore, 45 InterpolantComputations, 38 PerfectInterpolantSequences, 2972/3366 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 Received shutdown request...