./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.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_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/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_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/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_46b56457-c578-48b3-add8-efc44bd7feff/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 5fd80c822f4c545ea9a48882a667e8fa2630e37e10bf15ea7aea35e48f16af74 ................................................................................................................................... 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_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/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_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/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_46b56457-c578-48b3-add8-efc44bd7feff/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 5fd80c822f4c545ea9a48882a667e8fa2630e37e10bf15ea7aea35e48f16af74 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:48:06,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:06,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:06,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:06,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:06,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:06,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:06,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:06,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:06,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:06,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:06,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:06,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:06,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:06,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:06,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:06,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:06,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:06,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:06,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:06,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:06,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:06,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:06,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:06,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:06,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:06,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:06,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:06,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:06,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:06,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:06,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:06,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:06,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:06,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:06,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:06,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:06,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:06,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:06,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:48:06,960 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:06,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:06,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:06,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:06,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:06,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:06,969 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:06,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:06,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:06,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:06,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:06,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:06,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:06,972 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:48:06,972 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:48:06,972 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:48:06,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:06,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:48:06,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:06,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:06,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:06,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:06,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:06,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:06,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:06,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:06,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:48:06,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:48:06,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:06,976 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_46b56457-c578-48b3-add8-efc44bd7feff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fd80c822f4c545ea9a48882a667e8fa2630e37e10bf15ea7aea35e48f16af74 [2021-10-28 09:48:07,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:07,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:07,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:07,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:07,294 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:07,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-10-28 09:48:07,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/5d7f1fc71/9e8f518ad11b4288a1935656f1981f74/FLAG1923236d3 [2021-10-28 09:48:07,907 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:07,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-10-28 09:48:07,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/5d7f1fc71/9e8f518ad11b4288a1935656f1981f74/FLAG1923236d3 [2021-10-28 09:48:08,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/5d7f1fc71/9e8f518ad11b4288a1935656f1981f74 [2021-10-28 09:48:08,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:08,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:48:08,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:08,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:08,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:08,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:08" (1/1) ... [2021-10-28 09:48:08,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d93bc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:08, skipping insertion in model container [2021-10-28 09:48:08,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:08" (1/1) ... [2021-10-28 09:48:08,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:08,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:08,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:08,871 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 09:48:08,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a4f4c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:08, skipping insertion in model container [2021-10-28 09:48:08,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:08,872 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:48:08,875 INFO L168 Benchmark]: Toolchain (without parser) took 550.01 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 75.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,875 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 83.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:08,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.42 ms. Allocated memory is still 102.8 MB. Free memory was 64.7 MB in the beginning and 75.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,878 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 102.8 MB. Free memory is still 83.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 537.42 ms. Allocated memory is still 102.8 MB. Free memory was 64.7 MB in the beginning and 75.6 MB in the end (delta: -10.9 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 09:48:11,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:11,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:11,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:11,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:11,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:11,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:11,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:11,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:11,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:11,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:11,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:11,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:11,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:11,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:11,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:11,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:11,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:11,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:11,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:11,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:11,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:11,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:11,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:11,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:11,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:11,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:11,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:11,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:11,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:11,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:11,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:11,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:11,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:11,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:11,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:11,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:11,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:11,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:11,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:11,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:11,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:48:11,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:11,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:11,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:11,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:11,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:11,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:11,180 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:11,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:11,180 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:11,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:11,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:11,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:11,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:11,181 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:48:11,181 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:48:11,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:11,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:11,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:11,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:11,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:11,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:11,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:11,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:11,184 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:48:11,184 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:48:11,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:11,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:48:11,185 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_46b56457-c578-48b3-add8-efc44bd7feff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fd80c822f4c545ea9a48882a667e8fa2630e37e10bf15ea7aea35e48f16af74 [2021-10-28 09:48:11,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:11,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:11,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:11,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:11,555 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:11,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-10-28 09:48:11,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/0a1b7c299/c5450530705a47b8b2f6063c7cc2e248/FLAG11f88e523 [2021-10-28 09:48:12,365 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:12,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-10-28 09:48:12,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/0a1b7c299/c5450530705a47b8b2f6063c7cc2e248/FLAG11f88e523 [2021-10-28 09:48:12,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/data/0a1b7c299/c5450530705a47b8b2f6063c7cc2e248 [2021-10-28 09:48:12,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:12,593 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:48:12,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:12,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:12,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:12,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:12" (1/1) ... [2021-10-28 09:48:12,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@141376f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:12, skipping insertion in model container [2021-10-28 09:48:12,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:12" (1/1) ... [2021-10-28 09:48:12,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:12,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:13,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:13,206 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:48:13,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:13,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:13,314 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:13,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:13,459 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:13,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13 WrapperNode [2021-10-28 09:48:13,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:13,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:13,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:13,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:13,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:13,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:13,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:13,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:13,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:13,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:13,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:13,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:48:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:48:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:48:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:48:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:48:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:48:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:48:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:48:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:48:13,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:48:13,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:48:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:48:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:48:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:48:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:48:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:48:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:48:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:48:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:48:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:48:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:48:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:48:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:48:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:48:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:48:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:48:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2021-10-28 09:48:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2021-10-28 09:48:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:48:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:48:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:48:13,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:48:13,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:48:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:48:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:48:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:48:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:48:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:48:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:48:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:48:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:48:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:48:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:48:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:48:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:48:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:48:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:48:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:48:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:48:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:48:13,761 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:48:13,761 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:48:13,761 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:48:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:48:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:48:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:48:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:48:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:48:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:48:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:48:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:48:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:48:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:48:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:48:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:48:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:48:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:48:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:48:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:48:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:48:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:48:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:48:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:48:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:48:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:48:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:48:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:48:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:48:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:48:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:48:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:48:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:48:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:48:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:48:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:48:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:48:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:48:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:48:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:48:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:48:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:48:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:48:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:48:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:48:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:48:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:48:14,449 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:48:14,868 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:48:15,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:15,420 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:48:15,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:15 BoogieIcfgContainer [2021-10-28 09:48:15,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:15,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:48:15,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:48:15,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:48:15,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:48:12" (1/3) ... [2021-10-28 09:48:15,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6493ae0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:15, skipping insertion in model container [2021-10-28 09:48:15,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (2/3) ... [2021-10-28 09:48:15,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6493ae0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:15, skipping insertion in model container [2021-10-28 09:48:15,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:15" (3/3) ... [2021-10-28 09:48:15,431 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-2.i [2021-10-28 09:48:15,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:48:15,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 113 error locations. [2021-10-28 09:48:15,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:48:15,488 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 09:48:15,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2021-10-28 09:48:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 86 states have (on average 1.802325581395349) internal successors, (155), 146 states have internal predecessors, (155), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:48:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:48:15,515 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:15,516 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:15,516 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:48:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:15,522 INFO L85 PathProgramCache]: Analyzing trace with hash 307732063, now seen corresponding path program 1 times [2021-10-28 09:48:15,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:15,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648862530] [2021-10-28 09:48:15,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:15,536 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:15,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:15,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:15,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:48:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:15,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:48:15,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:15,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:16,096 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 09:48:16,097 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:16,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648862530] [2021-10-28 09:48:16,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648862530] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:16,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:16,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:48:16,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742154284] [2021-10-28 09:48:16,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:48:16,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:48:16,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:48:16,124 INFO L87 Difference]: Start difference. First operand has 175 states, 86 states have (on average 1.802325581395349) internal successors, (155), 146 states have internal predecessors, (155), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:48:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:16,351 INFO L93 Difference]: Finished difference Result 163 states and 181 transitions. [2021-10-28 09:48:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:48:16,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-28 09:48:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:48:16,363 INFO L225 Difference]: With dead ends: 163 [2021-10-28 09:48:16,363 INFO L226 Difference]: Without dead ends: 160 [2021-10-28 09:48:16,364 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 09:48:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-28 09:48:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 106. [2021-10-28 09:48:16,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 90 states have internal predecessors, (94), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2021-10-28 09:48:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2021-10-28 09:48:16,417 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 16 [2021-10-28 09:48:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:48:16,418 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2021-10-28 09:48:16,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:48:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2021-10-28 09:48:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:48:16,419 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:16,420 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:16,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 09:48:16,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:48:16,630 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:48:16,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2050542398, now seen corresponding path program 1 times [2021-10-28 09:48:16,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:16,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058673721] [2021-10-28 09:48:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:16,632 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:16,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:16,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:16,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:48:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:16,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:48:16,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:16,862 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 09:48:16,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:16,954 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 09:48:16,955 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:16,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058673721] [2021-10-28 09:48:16,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058673721] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:16,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:16,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:48:16,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665541126] [2021-10-28 09:48:16,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:48:16,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:48:16,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:48:16,967 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:48:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:17,205 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions. [2021-10-28 09:48:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:48:17,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-28 09:48:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:48:17,208 INFO L225 Difference]: With dead ends: 156 [2021-10-28 09:48:17,208 INFO L226 Difference]: Without dead ends: 153 [2021-10-28 09:48:17,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 09:48:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-28 09:48:17,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2021-10-28 09:48:17,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 45 states have (on average 2.0) internal successors, (90), 87 states have internal predecessors, (90), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-10-28 09:48:17,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2021-10-28 09:48:17,221 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 16 [2021-10-28 09:48:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:48:17,221 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2021-10-28 09:48:17,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:48:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2021-10-28 09:48:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:48:17,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:17,223 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:17,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:17,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:48:17,434 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:48:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash 503598229, now seen corresponding path program 1 times [2021-10-28 09:48:17,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:17,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414425391] [2021-10-28 09:48:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:17,436 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:17,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:17,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:17,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:48:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:17,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:48:17,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:17,673 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 09:48:17,824 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:48:17,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-28 09:48:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:17,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:18,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:18,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414425391] [2021-10-28 09:48:18,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414425391] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:48:18,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:48:18,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 09:48:18,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370714194] [2021-10-28 09:48:18,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:48:18,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:48:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:48:18,146 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:48:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:21,488 INFO L93 Difference]: Finished difference Result 198 states and 222 transitions. [2021-10-28 09:48:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:48:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2021-10-28 09:48:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:48:21,492 INFO L225 Difference]: With dead ends: 198 [2021-10-28 09:48:21,492 INFO L226 Difference]: Without dead ends: 198 [2021-10-28 09:48:21,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:48:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-28 09:48:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 113. [2021-10-28 09:48:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 95 states have internal predecessors, (103), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (14), 10 states have call predecessors, (14), 9 states have call successors, (14) [2021-10-28 09:48:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2021-10-28 09:48:21,506 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 19 [2021-10-28 09:48:21,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:48:21,507 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2021-10-28 09:48:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:48:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2021-10-28 09:48:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:48:21,508 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:21,508 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:21,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:21,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:48:21,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:48:21,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash 503598230, now seen corresponding path program 1 times [2021-10-28 09:48:21,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:21,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31054528] [2021-10-28 09:48:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:21,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:21,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:21,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:48:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:21,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:48:21,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:21,957 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 09:48:21,964 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 09:48:24,288 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:48:24,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-10-28 09:48:24,304 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:48:24,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-10-28 09:48:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:24,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:37,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-28 09:48:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:37,251 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:37,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31054528] [2021-10-28 09:48:37,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31054528] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:48:37,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:48:37,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-28 09:48:37,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465565545] [2021-10-28 09:48:37,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:48:37,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:37,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:48:37,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=197, Unknown=5, NotChecked=0, Total=240 [2021-10-28 09:48:37,253 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:49:18,511 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| c_entry_point_~a10~0.base))) (= c_entry_point_~a10~0.offset (_ bv0 32)) (= (_ bv4 32) (select |c_#length| c_entry_point_~a10~0.base)) (forall ((v_entry_point_~a10~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~a10~0.base_BEFORE_CALL_4 (_ BitVec 32))) (or (let ((.cse0 (bvadd (_ bv4 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2))) (and (bvule v_entry_point_~a10~0.offset_BEFORE_CALL_2 .cse0) (bvule .cse0 (select |c_#length| v_entry_point_~a10~0.base_BEFORE_CALL_4)))) (exists ((|v_ldv_malloc_#res.base_28| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_28|))))))) (or (not (bvule v_entry_point_~a10~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_25 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~a10~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_28| v_ldv_malloc_~size_25) v_entry_point_~a10~0.base_BEFORE_CALL_4)))))))))) is different from false [2021-10-28 09:49:49,772 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (and (forall ((|v_ldv_malloc_#res.base_28| (_ BitVec 32))) (or (and (forall ((v_ldv_malloc_~size_25 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) c_entry_point_~a10~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_28| v_ldv_malloc_~size_25) c_entry_point_~a10~0.base))) (bvule c_entry_point_~a10~0.offset (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_28|))))))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (bvule c_entry_point_~a10~0.offset .cse0) (bvule .cse0 (select |c_#length| c_entry_point_~a10~0.base)))) is different from false [2021-10-28 09:50:51,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:51,491 INFO L93 Difference]: Finished difference Result 132 states and 143 transitions. [2021-10-28 09:50:51,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:50:51,492 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-10-28 09:50:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:51,494 INFO L225 Difference]: With dead ends: 132 [2021-10-28 09:50:51,494 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 09:50:51,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=100, Invalid=449, Unknown=11, NotChecked=90, Total=650 [2021-10-28 09:50:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 09:50:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2021-10-28 09:50:51,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 63 states have (on average 1.7619047619047619) internal successors, (111), 98 states have internal predecessors, (111), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2021-10-28 09:50:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2021-10-28 09:50:51,518 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 19 [2021-10-28 09:50:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:51,518 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2021-10-28 09:50:51,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:50:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2021-10-28 09:50:51,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:50:51,520 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:51,520 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:51,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:51,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:51,721 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:51,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1293353130, now seen corresponding path program 1 times [2021-10-28 09:50:51,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:51,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001223579] [2021-10-28 09:50:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:51,722 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:51,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:51,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:51,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:50:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:51,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:50:51,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:52,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:50:52,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:50:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:52,198 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:50:52,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001223579] [2021-10-28 09:50:52,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001223579] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 09:50:52,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:50:52,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 09:50:52,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669244993] [2021-10-28 09:50:52,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:50:52,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:50:52,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:50:52,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:50:52,200 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:50:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:52,278 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2021-10-28 09:50:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:50:52,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-28 09:50:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:52,280 INFO L225 Difference]: With dead ends: 116 [2021-10-28 09:50:52,280 INFO L226 Difference]: Without dead ends: 112 [2021-10-28 09:50:52,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 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 09:50:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-28 09:50:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-10-28 09:50:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 59 states have (on average 1.7627118644067796) internal successors, (104), 92 states have internal predecessors, (104), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 9 states have call successors, (13) [2021-10-28 09:50:52,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 127 transitions. [2021-10-28 09:50:52,289 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 127 transitions. Word has length 19 [2021-10-28 09:50:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:52,289 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 127 transitions. [2021-10-28 09:50:52,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:50:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 127 transitions. [2021-10-28 09:50:52,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:50:52,290 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:52,291 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:52,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:52,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:52,497 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:52,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:52,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1373394729, now seen corresponding path program 1 times [2021-10-28 09:50:52,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:52,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679918147] [2021-10-28 09:50:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:52,498 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:52,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:52,499 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:52,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:50:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:52,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:50:52,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:52,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:50:52,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 09:50:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:53,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:50:53,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679918147] [2021-10-28 09:50:53,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679918147] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:50:53,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:50:53,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-28 09:50:53,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733840800] [2021-10-28 09:50:53,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:50:53,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:50:53,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:50:53,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:50:53,222 INFO L87 Difference]: Start difference. First operand 112 states and 127 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:50:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:53,814 INFO L93 Difference]: Finished difference Result 110 states and 124 transitions. [2021-10-28 09:50:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:50:53,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 21 [2021-10-28 09:50:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:53,817 INFO L225 Difference]: With dead ends: 110 [2021-10-28 09:50:53,817 INFO L226 Difference]: Without dead ends: 110 [2021-10-28 09:50:53,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:50:53,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-28 09:50:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-28 09:50:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 90 states have internal predecessors, (101), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 9 states have call successors, (13) [2021-10-28 09:50:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2021-10-28 09:50:53,826 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 21 [2021-10-28 09:50:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:53,826 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2021-10-28 09:50:53,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:50:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2021-10-28 09:50:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 09:50:53,828 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:53,828 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:53,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:54,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:54,033 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash -943570788, now seen corresponding path program 1 times [2021-10-28 09:50:54,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:54,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948469910] [2021-10-28 09:50:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:54,034 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:54,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:54,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:50:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:54,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:50:54,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:54,336 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 16 treesize of output 12 [2021-10-28 09:50:54,366 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 16 treesize of output 8 [2021-10-28 09:50:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:54,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:50:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:54,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:50:54,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948469910] [2021-10-28 09:50:54,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948469910] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:50:54,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:50:54,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 09:50:54,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621125967] [2021-10-28 09:50:54,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:50:54,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:50:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:50:54,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:50:54,502 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:50:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:54,784 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2021-10-28 09:50:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:50:54,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-10-28 09:50:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:54,786 INFO L225 Difference]: With dead ends: 120 [2021-10-28 09:50:54,786 INFO L226 Difference]: Without dead ends: 120 [2021-10-28 09:50:54,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:50:54,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-28 09:50:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-28 09:50:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 63 states have (on average 1.6666666666666667) internal successors, (105), 93 states have internal predecessors, (105), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (13), 13 states have call predecessors, (13), 9 states have call successors, (13) [2021-10-28 09:50:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2021-10-28 09:50:54,794 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 24 [2021-10-28 09:50:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:54,794 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2021-10-28 09:50:54,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:50:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2021-10-28 09:50:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 09:50:54,796 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:54,796 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:54,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:54,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:54,997 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1543942045, now seen corresponding path program 1 times [2021-10-28 09:50:54,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:54,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683312032] [2021-10-28 09:50:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:54,998 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:54,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:54,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:55,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:50:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:55,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:50:55,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:50:55,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:50:55,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:55,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:50:55,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683312032] [2021-10-28 09:50:55,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683312032] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:50:55,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:50:55,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 09:50:55,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346532264] [2021-10-28 09:50:55,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:50:55,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:50:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:50:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:50:55,868 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:50:56,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:56,447 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2021-10-28 09:50:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:50:56,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-10-28 09:50:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:56,450 INFO L225 Difference]: With dead ends: 113 [2021-10-28 09:50:56,450 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 09:50:56,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:50:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 09:50:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-28 09:50:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 63 states have (on average 1.6349206349206349) internal successors, (103), 92 states have internal predecessors, (103), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (13), 13 states have call predecessors, (13), 9 states have call successors, (13) [2021-10-28 09:50:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2021-10-28 09:50:56,458 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 24 [2021-10-28 09:50:56,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:56,458 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2021-10-28 09:50:56,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:50:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2021-10-28 09:50:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:50:56,460 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:56,460 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:56,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:50:56,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:56,675 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 304570972, now seen corresponding path program 1 times [2021-10-28 09:50:56,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:56,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397484600] [2021-10-28 09:50:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:56,676 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:56,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:56,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:56,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:50:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:56,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:50:56,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:56,962 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 09:50:57,018 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 19 treesize of output 15 [2021-10-28 09:50:57,073 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 19 treesize of output 11 [2021-10-28 09:50:57,226 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:50:57,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-28 09:50:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:57,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:50:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:50:57,611 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:50:57,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397484600] [2021-10-28 09:50:57,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397484600] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:50:57,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:50:57,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-10-28 09:50:57,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550051895] [2021-10-28 09:50:57,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:50:57,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:50:57,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:50:57,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:50:57,613 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:50:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:50:59,218 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2021-10-28 09:50:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:50:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-10-28 09:50:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:50:59,221 INFO L225 Difference]: With dead ends: 151 [2021-10-28 09:50:59,221 INFO L226 Difference]: Without dead ends: 151 [2021-10-28 09:50:59,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:50:59,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-28 09:50:59,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 117. [2021-10-28 09:50:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 66 states have (on average 1.6363636363636365) internal successors, (108), 94 states have internal predecessors, (108), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (15), 15 states have call predecessors, (15), 10 states have call successors, (15) [2021-10-28 09:50:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2021-10-28 09:50:59,230 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 29 [2021-10-28 09:50:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:50:59,231 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2021-10-28 09:50:59,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:50:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2021-10-28 09:50:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:50:59,249 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:50:59,249 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:50:59,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-28 09:50:59,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:50:59,464 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:50:59,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:50:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash 304570973, now seen corresponding path program 1 times [2021-10-28 09:50:59,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:50:59,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010154518] [2021-10-28 09:50:59,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:50:59,465 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:50:59,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:50:59,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:50:59,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:50:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:50:59,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:50:59,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:50:59,758 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 09:50:59,769 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 09:50:59,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 09:50:59,873 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 26 treesize of output 22 [2021-10-28 09:50:59,977 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 45 treesize of output 33 [2021-10-28 09:50:59,982 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 30 treesize of output 22 [2021-10-28 09:51:02,222 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:51:02,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-10-28 09:51:02,237 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:51:02,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2021-10-28 09:51:02,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:51:02,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:51:18,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-28 09:51:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:51:18,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:51:18,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010154518] [2021-10-28 09:51:18,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010154518] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:51:18,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:18,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 09:51:18,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125671840] [2021-10-28 09:51:18,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:51:18,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:51:18,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:51:18,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-10-28 09:51:18,970 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 09:53:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:49,761 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2021-10-28 09:53:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:53:49,762 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-10-28 09:53:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:49,763 INFO L225 Difference]: With dead ends: 159 [2021-10-28 09:53:49,763 INFO L226 Difference]: Without dead ends: 159 [2021-10-28 09:53:49,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=91, Invalid=499, Unknown=10, NotChecked=0, Total=600 [2021-10-28 09:53:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-28 09:53:49,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 117. [2021-10-28 09:53:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (15), 15 states have call predecessors, (15), 10 states have call successors, (15) [2021-10-28 09:53:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2021-10-28 09:53:49,770 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 29 [2021-10-28 09:53:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:49,770 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2021-10-28 09:53:49,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 09:53:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2021-10-28 09:53:49,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:53:49,775 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:49,775 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:49,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-28 09:53:49,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:49,981 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 09:53:49,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1801581997, now seen corresponding path program 1 times [2021-10-28 09:53:49,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:49,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799506540] [2021-10-28 09:53:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:49,982 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:49,983 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:50,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:53:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:50,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:53:50,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:50,318 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:53:50,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:53:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:53:54,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:05,663 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:54:05,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799506540] [2021-10-28 09:54:05,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_45 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_45 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 09:54:05,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947271317] [2021-10-28 09:54:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:05,664 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:54:05,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:54:05,670 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:54:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-28 09:54:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:06,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:54:06,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:06,167 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:54:06,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-10-28 09:54:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:54:08,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:12,767 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_45 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_45 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_45)))))))))) (= |v_old(#valid)_BEFORE_CALL_13| |c_#valid|))) is different from false [2021-10-28 09:54:15,408 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:54:15,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 119 [2021-10-28 09:54:16,353 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:54:16,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2021-10-28 09:54:16,468 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| |c_entry_point_#t~ret44.base| (_ bv0 1))) (exists ((v_entry_point_~a10~0.base_45 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_45 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_45)))))))))))) is different from false [2021-10-28 09:54:16,623 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret44.base_58| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_entry_point_#t~ret44.base_58|)))) (exists ((v_entry_point_~a10~0.base_45 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_45 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_45)))))))))) (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| |v_entry_point_#t~ret44.base_58| (_ bv0 1))))) is different from false [2021-10-28 09:54:16,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~a10~0.base_45 (_ bv0 1)) v_prenex_11)=(= (select v_prenex_11 v_antiDerIndex_entry0_4) (select (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~a10~0.base_45 (_ bv0 1)) v_antiDerIndex_entry0_4))} [2021-10-28 09:54:16,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390652100] [2021-10-28 09:54:16,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:16,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:16,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:16,746 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:16,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 09:54:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:17,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:54:17,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:54:17,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:30,293 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 09:54:30,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 116 [2021-10-28 09:54:30,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_13))=(not (= (select (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_6) (select v_prenex_13 v_antiDerIndex_entry0_6)))} [2021-10-28 09:54:30,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:30,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:54:30,883 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:54:30,883 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:54:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:54:30,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:54:30,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err0REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err1REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err2REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err3REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err4REQUIRES_VIOLATION [2021-10-28 09:54:30,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err5REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:54:30,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:54:30,898 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,900 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err0REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err1REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err2REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err3REQUIRES_VIOLATION [2021-10-28 09:54:30,901 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err4REQUIRES_VIOLATION [2021-10-28 09:54:30,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err5REQUIRES_VIOLATION [2021-10-28 09:54:30,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION [2021-10-28 09:54:30,903 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION [2021-10-28 09:54:30,904 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION [2021-10-28 09:54:30,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12REQUIRES_VIOLATION [2021-10-28 09:54:30,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13REQUIRES_VIOLATION [2021-10-28 09:54:30,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14REQUIRES_VIOLATION [2021-10-28 09:54:30,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15REQUIRES_VIOLATION [2021-10-28 09:54:30,905 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19REQUIRES_VIOLATION [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20REQUIRES_VIOLATION [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,906 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,907 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,907 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,907 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,907 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:30,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:31,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:31,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:31,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:31,514 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:31,517 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:54:31,519 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:54:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:54:31 BoogieIcfgContainer [2021-10-28 09:54:31,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:54:31,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:54:31,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:54:31,526 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:54:31,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:15" (3/4) ... [2021-10-28 09:54:31,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:54:31,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:54:31,530 INFO L168 Benchmark]: Toolchain (without parser) took 378936.65 ms. Allocated memory was 67.1 MB in the beginning and 104.9 MB in the end (delta: 37.7 MB). Free memory was 40.4 MB in the beginning and 25.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:31,531 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:31,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.53 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 32.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:31,531 INFO L168 Benchmark]: Boogie Preprocessor took 176.67 ms. Allocated memory is still 67.1 MB. Free memory was 31.9 MB in the beginning and 45.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:31,532 INFO L168 Benchmark]: RCFGBuilder took 1783.86 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.2 MB in the beginning and 47.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:31,532 INFO L168 Benchmark]: TraceAbstraction took 376101.17 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 25.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:31,532 INFO L168 Benchmark]: Witness Printer took 3.48 ms. Allocated memory is still 104.9 MB. Free memory is still 25.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:31,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 865.53 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 32.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 176.67 ms. Allocated memory is still 67.1 MB. Free memory was 31.9 MB in the beginning and 45.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1783.86 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.2 MB in the beginning and 47.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 376101.17 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 25.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.48 ms. Allocated memory is still 104.9 MB. Free memory is still 25.5 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 ensures #valid == old(#valid); 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: 787]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 787. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L788] CALL entry_point() [L773] CALL, EXPR ldv_malloc(sizeof(struct A10)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L773] RET, EXPR ldv_malloc(sizeof(struct A10)) [L773] struct A10 *a10 = (struct A10 *)ldv_malloc(sizeof(struct A10)); [L774] COND FALSE !(!a10) [L775] CALL, EXPR ldv_malloc(sizeof(struct B10)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(struct B10)) [L775] a10->b = (struct B10 *)ldv_malloc(sizeof(struct B10)) [L776] EXPR a10->b [L776] COND TRUE !a10->b [L785] free(a10) [L785] free(a10) [L785] free(a10) [L788] RET entry_point() - 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: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: 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: 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: 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free 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. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 415 locations, 113 error locations. Started 1 CEGAR loops. OverallTime: 376.0s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 292.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 935 SDslu, 3284 SDs, 0 SdLazy, 3555 SolverSat, 237 SolverUnsat, 115 SolverUnknown, 0 SolverNotchecked, 254.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 346 SyntacticMatches, 9 SemanticMatches, 104 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 62.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, InterpolantAutomatonStates: 87, 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, 10 MinimizatonAttempts, 284 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 53.3s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 439 ConstructedInterpolants, 48 QuantifiedInterpolants, 2806 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1097 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 68/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:54:31,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b56457-c578-48b3-add8-efc44bd7feff/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...